Perry, J. A., & Perry, E. (1988). The social web: An introduction to sociology (5th ed.). Harper & Row.

Perry, John A., and Erna Perry. The Social Web: An Introduction to Sociology. 5th ed. New York: Harper & Row, 1988.

Perry, John A., and Erna Perry. The Social Web: An Introduction to Sociology. 5th ed. Harper & Row, 1988.