APA (7th ed.) Citation

Freedheim, D. K. (1992). History of psychotherapy: A century of change. American Psychological Association.

Chicago Style (17th ed.) Citation

Freedheim, Donald K. History of Psychotherapy: A Century of Change. Washington: American Psychological Association, 1992.

MLA (9th ed.) Citation

Freedheim, Donald K. History of Psychotherapy: A Century of Change. American Psychological Association, 1992.