APA (7th ed.) Citation

Zigler, E., & Bennett-Gates, D. (1999). Personality development in individuals with mental retardation. University Press.

Chicago Style (17th ed.) Citation

Zigler, Edward, and Dianne Bennett-Gates. Personality Development in Individuals with Mental Retardation. Cambridge: University Press, 1999.

MLA (9th ed.) Citation

Zigler, Edward, and Dianne Bennett-Gates. Personality Development in Individuals with Mental Retardation. University Press, 1999.