APA (7th ed.) Citation

Kopelman, L., Moskop, J. C., & Kopelman, L. M. (1984). Ethics and mental retardation. Philosophy and medicine.

Chicago Style (17th ed.) Citation

Kopelman, Loretta, John C. Moskop, and Loretta M. Kopelman. "Ethics and Mental Retardation." Philosophy and Medicine 1984.

MLA (8th ed.) Citation

Kopelman, Loretta, et al. "Ethics and Mental Retardation." Philosophy and Medicine, 1984.