Cita APA (7a ed.)

O'Donohue, W. T., & Graybar, S. R. (2009). Handbook of contemporary psychotherapy: Toward an improved understanding of effective psychotherapy. SAGE.

Cita Chicago Style (17a ed.)

O'Donohue, William T., y Steven R. Graybar. Handbook of Contemporary Psychotherapy: Toward an Improved Understanding of Effective Psychotherapy. Los Angeles: SAGE, 2009.

Cita MLA (9a ed.)

O'Donohue, William T., y Steven R. Graybar. Handbook of Contemporary Psychotherapy: Toward an Improved Understanding of Effective Psychotherapy. SAGE, 2009.