APA (7th ed.) Citation

Loucks, W. N., & Whitney, W. G. (1973). Comparative economic systems (9th ed.). Harper & Row.

Chicago Style (17th ed.) Citation

Loucks, William N., and William G. Whitney. Comparative Economic Systems. 9th ed. New York: Harper & Row, 1973.

MLA (9th ed.) Citation

Loucks, William N., and William G. Whitney. Comparative Economic Systems. 9th ed. Harper & Row, 1973.