APA (7e ed.) Bronvermelding

Berger, M. L., & Berger, P. J. (1972). Group training techniques. Gower Press.

Chicago (17e ed.) Bronvermelding

Berger, Melvyn Louis, en Pam J. Berger. Group Training Techniques. [Epping]: Gower Press, 1972.

MLA (9e ed.) Bronvermelding

Berger, Melvyn Louis, en Pam J. Berger. Group Training Techniques. Gower Press, 1972.