Cita APA (7a ed.)

Harris, G. A. (1991). Tough customers: Counseling unwilling clients. American Correctional Assoc.

Cita Chicago Style (17a ed.)

Harris, George A. Tough Customers: Counseling Unwilling Clients. Laurel, Md: American Correctional Assoc, 1991.

Cita MLA (9a ed.)

Harris, George A. Tough Customers: Counseling Unwilling Clients. American Correctional Assoc, 1991.