APA (7th ed.) Citation

Edgerton, R. B. (1979). Mental retardation. Harvard University Press.

Chicago Style (17th ed.) Citation

Edgerton, Robert B. Mental Retardation. Cambridge, Mass.: Harvard University Press, 1979.

MLA (8th ed.) Citation

Edgerton, Robert B. Mental Retardation. Harvard University Press, 1979.