Cita APA (7th ed.)

Guerin, P. J. (1976). Family therapy: Theory and practice. Gardner.

Cita Chicago (17th ed.)

Guerin, Philip J. Family Therapy: Theory and Practice. New York: Gardner, 1976.

Cita MLA (9th ed.)

Guerin, Philip J. Family Therapy: Theory and Practice. Gardner, 1976.