Citazione APA

Bergin, A. E., & Garfield, S. L. (1971). Handbook of psychotherapy and behaviour change (3.).

Stile di citazione Chicago

Bergin, Allen E., e Sol L. Garfield. Handbook of Psychotherapy and Behaviour Change. 3. New York, John Wiley & Sons, 1971.

Citazione MLA

Bergin, Allen E., e Sol L. Garfield. Handbook of Psychotherapy and Behaviour Change. 3. 1971.