APA (7th ed.) Citation
Yalom, I. D. (1970). The theory and practice of group psychotherapy (3rd ed.). Basic books.
Chicago Style (17th ed.) Citation
Yalom, Irvin D. The Theory and Practice of Group Psychotherapy. 3rd ed. [S.l.]: Basic books, 1970.
MLA (9th ed.) Citation
Yalom, Irvin D. The Theory and Practice of Group Psychotherapy. 3rd ed. Basic books, 1970.
Warning: These citations may not always be 100% accurate.