Berger, M. L., & Berger, P. J. (1972). Group training techniques. Gower Press.
芝加哥风格引文Berger, Melvyn Louis, 与 Pam J. Berger. Group Training Techniques. [Epping]: Gower Press, 1972.
MLA引文Berger, Melvyn Louis, 与 Pam J. Berger. Group Training Techniques. Gower Press, 1972.
警告：这些引文格式不一定是100％准确.