Encounter groups: first facts
MLA
Lieberman, Morton A., Irvin D Yalom, and Matthew B Miles. Encounter Groups: First Facts. New York: Basic Books, 1973
APA, 7th edition
Lieberman, M. A., Yalom, I. D., & Miles, M. B. (1973). Encounter groups: first facts. New York: Basic Books
Chicago, 17th edition
Lieberman, Morton A., Irvin D. Yalom, and Matthew B Miles. Encounter groups: first facts. New York: Basic Books, 1973