Cita APA (7th ed.)

Clarke, A. M. (1974). Mental deficiency the changing outlook. The Free Press.

Cita Chicago (17th ed.)

Clarke, Ann M. Mental Deficiency the Changing Outlook. The Free Press, 1974.

Cita MLA (9th ed.)

Clarke, Ann M. Mental Deficiency the Changing Outlook. The Free Press, 1974.