Cita APA

Schell, R. E., & Hall, E. (1979). Developmental Psychology Today (3a ed.). New York: CRM Random House.

Citación estilo Chicago

Schell, Robert E., y Elizabeth Hall. Developmental Psychology Today. 3a ed. New York: CRM Random House, 1979.

Cita MLA

Schell, Robert E., y Elizabeth Hall. Developmental Psychology Today. 3a ed. New York: CRM Random House, 1979.