Cita APA (7th ed.)
Camp, W. G., & Heath-Camp, B. (2016). Managing Our Natural Resources (6th ed.). Cengage Learning.
Cita Chicago (17th ed.)
Camp, William G., i Betty Heath-Camp. Managing Our Natural Resources. 6th ed. New York: Cengage Learning, 2016.
Cita MLA (9th ed.)
Camp, William G., i Betty Heath-Camp. Managing Our Natural Resources. 6th ed. Cengage Learning, 2016.
Atenció: Aquestes cites poden no estar 100% correctes.