Cita APA

Duffy, M. (1999). Handbook of counseling and psychotherapy with older adults. Wiley.

Citación estilo Chicago

Duffy, Michael. Handbook of Counseling and Psychotherapy with Older Adults. New York: Wiley, 1999.

Cita MLA

Duffy, Michael. Handbook of Counseling and Psychotherapy with Older Adults. Wiley, 1999.

Warning: These citations may not always be 100% accurate.