Cita APA (7a ed.)

Aker, G. F., & Smith, R. M. (1970). Handbook of adult education. Macmillan.

Cita Chicago Style (17a ed.)

Aker, George F., y Robert M. Smith. Handbook of Adult Education. New York: Macmillan, 1970.

Cita MLA (9a ed.)

Aker, George F., y Robert M. Smith. Handbook of Adult Education. Macmillan, 1970.