APA Edition Citation

Zigler, E., & Hodapp, R. M. (1986). Understanding mental retardation. Cambridge University Press.

Chicago Edition Citation

Zigler, Edward, and Robert M. Hodapp. Understanding Mental Retardation. Cambridge: Cambridge University Press, 1986.

MLA Edition Citation

Zigler, Edward, and Robert M. Hodapp. Understanding Mental Retardation. Cambridge University Press, 1986.