Cita APA (7th ed.)

Perry, E., & Perry, J. A. (1988). Contemporary society: An introduction to social science (5th ed.). Harper & Row.

Cita Chicago (17th ed.)

Perry, Erna, i John A. Perry. Contemporary Society: An Introduction to Social Science. 5th ed. New York: Harper & Row, 1988.

Cita MLA (8th ed.)

Perry, Erna, i John A. Perry. Contemporary Society: An Introduction to Social Science. 5th ed. Harper & Row, 1988.