Cita APA (7a ed.)

Fletcher, R. J. (1989). Mental retardation and mental illness: Assessment, treatment, and service for the dually diagnosed. Lexington Books.

Cita Chicago Style (17a ed.)

Fletcher, Robert J. Mental Retardation and Mental Illness: Assessment, Treatment, and Service for the Dually Diagnosed. Lexington, Mass. [u.a.]: Lexington Books, 1989.

Cita MLA (9a ed.)

Fletcher, Robert J. Mental Retardation and Mental Illness: Assessment, Treatment, and Service for the Dually Diagnosed. Lexington Books, 1989.