APA (7th ed.) Citation

Levine, E. L., & Cornwell, E. E. J. (1972). An introduction to American government. Macmillan.

Chicago Style (17th ed.) Citation

Levine, Erwin L., and Elmer E. Jr Cornwell. An Introduction to American Government. New York: Macmillan, 1972.

MLA (9th ed.) Citation

Levine, Erwin L., and Elmer E. Jr Cornwell. An Introduction to American Government. Macmillan, 1972.