Berger, M. L., & Berger, P. J. (1972). Group training techniques. Gower Press.
Chicagoスタイル(17版)引用形式Berger, Melvyn Louis, , Pam J. Berger. Group Training Techniques. [Epping]: Gower Press, 1972.
MLA(9版)引用形式Berger, Melvyn Louis, , Pam J. Berger. Group Training Techniques. Gower Press, 1972.
警告: この引用は必ずしも正確ではありません.