APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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

Warning: These citations may not always be 100% accurate.