APA (7th ed.) Citation

Ingalls, R. P. (1978). Mental retardation. Macmillan Pub. ; Collier Macmillan.

Chicago Style (17th ed.) Citation

Ingalls, Robert P. Mental Retardation. New York London: Macmillan Pub. ; Collier Macmillan, 1978.

MLA (9th ed.) Citation

Ingalls, Robert P. Mental Retardation. Macmillan Pub. ; Collier Macmillan, 1978.

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