How to Cite Irvin Yalom: APA 7, MLA 9 and Chicago Formats

Explained

Most Yalom citation errors come from two places: the 2020 edition has a second author, and several of his books have been reissued under different publishers.

This page gives the reference-list entry for each major book in APA 7, MLA 9 and Chicago notes-bibliography, with the edition and publisher that students most often get wrong flagged as you go.

What this page covers
  • Reference entries for every major Yalom book
  • The Leszcz co-authorship trap on the group psychotherapy text
  • Which edition to cite when several exist
Quick answer

For the most-cited title, APA 7 is: Yalom, I. D., & Leszcz, M. (2020). The theory and practice of group psychotherapy (6th ed.). Basic Books. The two errors that cost marks are omitting Molyn Leszcz, who has been a co-author since the fifth edition, and citing an edition you did not actually read.

Before you choose
The group text has a co-author from the fifth edition onward
Yalom, I. D., & Leszcz, M. Omitting Leszcz is the single most common Yalom citation error and it is immediately visible to a marker.
Cite the edition you actually read
The Theory and Practice of Group Psychotherapy has six editions spanning 1970 to 2020. The therapeutic factors are stable across them; the evidence base is not.
Publishers changed on several titles
Basic Books, Harper Perennial and Stanford University Press all hold Yalom titles, and reissues have moved some of them. Use the copy in your hand.
Existential Psychotherapy has never had a second edition
Published by Basic Books in 1980 and never revised, which makes it one of the easier ones to cite correctly.
Entry points

The three best places to begin

Updated: September 25, 2026 1:03 pm
Theory and Practice of Group Psychotherapy
Yalom & Leszcz · 6th ed. 2020 · Basic Books
6th ed. 2020 Basic Books
The most frequently cited book in the whole of group psychotherapy, and the one whose citation students get wrong most often because of the Leszcz co-authorship.
$7.89 Amazon.com
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The Gift of Therapy: An Open Letter to a New Generation of Therapists and Their Patients
Irvin D. Yalom · 2002 · HarperCollins
2002 HarperCollins 85 chapters
Widely quoted in reflective assignments and training portfolios. Watch the subtitle, which changed between the original and the anniversary reissue.
$11.39 Amazon.com
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Love's Executioner: And Other Tales of Psychotherapy
Love's Executioner Most quoted in essays
Irvin D. Yalom · 1989 · Basic Books
1989 Basic Books Case studies
Ten case studies that turn up constantly in undergraduate essays. Cite the individual tale as a chapter when you are quoting one case.
$11.40 Amazon.com
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Start here: The Theory and Practice of Group Psychotherapy

Yalom & Leszcz · 6th ed. 2020 · Basic Books
Pros
  • Unambiguous publisher and edition data
  • Current sixth edition is the one most courses assign
  • Chapter-level citation is straightforward
  • Widely held, so library copies are easy to verify against
Cons
  • Six editions make it easy to cite the wrong one
  • Co-author is frequently omitted
  • Page numbers differ substantially between editions
Best for
Psychology and counselling students Anyone writing on group work
Not for
Readers not citing anything General-interest readers
The three formats, for the most-cited book

APA 7: Yalom, I. D., & Leszcz, M. (2020). The theory and practice of group psychotherapy (6th ed.). Basic Books. — MLA 9: Yalom, Irvin D., and Molyn Leszcz. The Theory and Practice of Group Psychotherapy. 6th ed., Basic Books, 2020. — Chicago: Yalom, Irvin D., and Molyn Leszcz. The Theory and Practice of Group Psychotherapy. 6th ed. New York: Basic Books, 2020.

Side-by-side comparison

Side by side

Most cited
The Theory and Practice of Group Psychotherapy
Most quoted
The Gift of Therapy
Essay favourite
Love's Executioner
Theory and Practice of Group Psychotherapy The Gift of Therapy: An Open Letter to a New Generation of Therapists and Their Patients Love's Executioner: And Other Tales of Psychotherapy
Year 2020 2002 1989
Publisher Basic Books HarperCollins Basic Books
Authors Yalom & Leszcz Yalom Yalom
Multiple editions exist Yes Yes No
Price $7.89 $11.39 $11.40
BUY NOW BUY NOW BUY NOW
How to choose

Picking the right entry point

01
Check for a co-author before anything else

Two of Yalom’s most-cited books are co-authored and both are routinely cited as single-author works.

Look for
Leszcz on the group text, Marilyn Yalom on A Matter of Death and Life
Avoid
Copying a single-author citation from a lecture slide
02
Match the edition to the copy you used

Page numbers move between editions, so a quotation cited to the wrong edition will not check out.

Look for
The edition statement on the title page
Avoid
Citing the newest edition because it looks current
03
Confirm the publisher on the copyright page

Reissues have moved several titles between Basic Books and Harper Perennial.

Look for
The copyright page of your actual copy
Avoid
Publisher data from retail listings
04
Cite chapters individually where the book is a collection

Love’s Executioner is ten separate case studies; quoting one is a chapter citation, not a book citation.

Look for
Chapter-level entries for case material
Avoid
Citing the whole book for one case
Frequently Asked Questions
How do I cite Yalom and Leszcz in APA 7?

Yalom, I. D., & Leszcz, M. (2020). The theory and practice of group psychotherapy (6th ed.). Basic Books. In text, use (Yalom & Leszcz, 2020). Cite whichever edition you actually consulted rather than defaulting to the newest.

Why do some citations of the group therapy book have one author?

Because the first four editions were Yalom alone. Molyn Leszcz joined as co-author from the fifth edition in 2005. A single-author citation dated 2005 or later is an error.

How do I cite Existential Psychotherapy?

APA 7: Yalom, I. D. (1980). Existential psychotherapy. Basic Books. It has never been revised, so there is no edition statement to include — which makes it one of the more forgiving Yalom citations.

How do I cite a single case from Love's Executioner?

Treat it as a chapter in an edited work by the same author: give the tale’s title, then the book, then the publisher. Quoting one case as though it were the whole book will not survive a page-number check.

Conclusion

The short version

  • Leszcz is a co-author from the fifth edition onward
  • Cite the edition you read, not the newest one
  • Verify the publisher on the copyright page

Check three things before you submit: is there a co-author, which edition is in your hand, and who published that printing. Those three account for almost every Yalom citation that comes back marked.