Gaya APA

Garfield, S, L., Bergin, A, E. (1978). Handbook of psychotherapy and behavior change : an empirical analysis (2nd ed). Singapore: John Wiley.

Gaya MLA

Garfield, Sol, L.., Bergin, Allen, E.. "Handbook of psychotherapy and behavior change : an empirical analysis". 2nd ed Singapore: John Wiley, 1978. Text.