MLA

Mullan, Hugh, and Max Rosenbaum. Group Psychotherapy; Theory and Practice. [New York]: Free Press of Glencoe, 1962.

APA

Mullan, H., & Rosenbaum, M. (1962). Group psychotherapy; theory and practice. [New York]: Free Press of Glencoe.

Chicago

Mullan, Hugh, and Max Rosenbaum. Group Psychotherapy; Theory and Practice. [New York]: Free Press of Glencoe, 1962.