MLA

Simmons, Ozzie G, and Helen MacGill Hughes. Work and Mental Illness : Eight Case Studies. New York: Wiley, 1965.

APA

Simmons, O. G, & Hughes, H. MacGill. (1965). Work and mental illness : eight case studies. New York: Wiley.

Chicago

Simmons, Ozzie G., and Helen MacGill Hughes. Work and Mental Illness: Eight Case Studies. New York: Wiley, 1965.