APA (7th ed.) Citation

Hilgard, E. R., Atkinson, R. C., & Atkinson, R. I. (1971). Introduction to psychology (5th ed.). Harcourt.

Chicago Style (17th ed.) Citation

Hilgard, Ernest Ropiequet, Richard C. Atkinson, and Rita I. Atkinson. Introduction to Psychology. 5th ed. New York: Harcourt, 1971.

MLA (9th ed.) Citation

Hilgard, Ernest Ropiequet, et al. Introduction to Psychology. 5th ed. Harcourt, 1971.