Cita APA

Berger, M. [., & Berger, P. (1972). Group training techniques. Gower.

Citación estilo Chicago

Berger, M.L. [ed.], y P.J Berger. Group Training Techniques. Epping: Gower, 1972.

Cita MLA

Berger, M.L. [ed.], y P.J Berger. Group Training Techniques. Gower, 1972.