APA (7th ed.) Citation

Sommers, M. S., & Kernan, J. B. (1968). Comparative marketing systems: A cultural approach. Appleton-Century-Crofts.

Chicago Style (17th ed.) Citation

Sommers, Montrose S., and Jerome B. Kernan. Comparative Marketing Systems: A Cultural Approach. New York: Appleton-Century-Crofts, 1968.

MLA (8th ed.) Citation

Sommers, Montrose S., and Jerome B. Kernan. Comparative Marketing Systems: A Cultural Approach. Appleton-Century-Crofts, 1968.