Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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