Cita APA (7th ed.)
ReVelle, P., & ReVelle, C. (1981). The environment: Issues and choices for society. D. Van Nostrand.
Cita Chicago (17th ed.)
ReVelle, Penelope, i Charles ReVelle. The Environment: Issues and Choices for Society. New York: D. Van Nostrand, 1981.
Cita MLA (9th ed.)
ReVelle, Penelope, i Charles ReVelle. The Environment: Issues and Choices for Society. D. Van Nostrand, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.