APA (7th ed.) Citation

Gayer, A. D., Homan, P. T., & James, E. K. (1938). The sugar economy of Puerto Rico. Columbia university press.

Chicago Style (17th ed.) Citation

Gayer, Arthur D., Paul T. Homan, and Earle Kenneth James. The Sugar Economy of Puerto Rico. New York: Columbia university press, 1938.

MLA (9th ed.) Citation

Gayer, Arthur D., et al. The Sugar Economy of Puerto Rico. Columbia university press, 1938.