Cita APA (7a ed.)

Guerin, P. J. (1976). Family therapy: Theory and practice. Gardner Press [u.a.].

Cita Chicago Style (17a ed.)

Guerin, Philip J. Family Therapy: Theory and Practice. New York [u.a.]: Gardner Press [u.a.], 1976.

Cita MLA (9a ed.)

Guerin, Philip J. Family Therapy: Theory and Practice. Gardner Press [u.a.], 1976.