Gaya APA

Lieberman, M, A., B, I, Y, I, D, I, M, M. (1973). Encounter groups first facts . New York: New York: Basic; 1973.

Gaya MLA

Lieberman, Morton, A., B, I., Yalom,, Irvin, D, II., Miles,, Matthew. "Encounter groups first facts". New York: New York: Basic; 1973, 1973. Text.