APA (7th ed.) Citation

American Association on Mental Retardation, Schalock, R. L., & Siperstein, G. N. (1997). Quality of life. American Association on Mental Retardation.

Chicago Style (17th ed.) Citation

American Association on Mental Retardation, Robert L. Schalock, and Gary N. Siperstein. Quality of Life. Washington: American Association on Mental Retardation, 1997.

MLA (9th ed.) Citation

American Association on Mental Retardation, et al. Quality of Life. American Association on Mental Retardation, 1997.