APA (7th ed.) Citation

Sellin, D. F. (1979). Mental retardation nature, needs, and advocacy. Allyn and Bacon.

Chicago Style (17th ed.) Citation

Sellin, Donald F. Mental Retardation Nature, Needs, and Advocacy. Allyn and Bacon, 1979.

MLA (8th ed.) Citation

Sellin, Donald F. Mental Retardation Nature, Needs, and Advocacy. Allyn and Bacon, 1979.

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