APA (7th ed.) Citation

Ewell, P. T., & Poleman, T. T. (1980). Uxpanapa: Agricultural development in the Mexican tropics. Pergamon Pr.

Chicago Style (17th ed.) Citation

Ewell, Peter T., and Thomas T. Poleman. Uxpanapa: Agricultural Development in the Mexican Tropics. New York: Pergamon Pr, 1980.

MLA (9th ed.) Citation

Ewell, Peter T., and Thomas T. Poleman. Uxpanapa: Agricultural Development in the Mexican Tropics. Pergamon Pr, 1980.