APA (7th ed.) Citation

Zeigler, L. H., & Peak, G. W. (1972). Interest groups in American society (2nd ed.). Prentice-Hall.

Chicago Style (17th ed.) Citation

Zeigler, L. Harmon, and G. Wayne Peak. Interest Groups in American Society. 2nd ed. Englewood Cliffs, N.J.: Prentice-Hall, 1972.

MLA (9th ed.) Citation

Zeigler, L. Harmon, and G. Wayne Peak. Interest Groups in American Society. 2nd ed. Prentice-Hall, 1972.