APA (7th ed.) Citation

Levine, E. L., & Cornwell, E. E. (1975). An introduction to American government (3. ed.). Macmillan [u.a.].

Chicago Style (17th ed.) Citation

Levine, Erwin L., and Elmer E. Cornwell. An Introduction to American Government. 3. ed. New York: Macmillan [u.a.], 1975.

MLA (9th ed.) Citation

Levine, Erwin L., and Elmer E. Cornwell. An Introduction to American Government. 3. ed. Macmillan [u.a.], 1975.