United Nations Population Fund & Myers, N. (1991). Population, resources, and the environment: The critical challenges. UNFPA.
Chicago Style (17th ed.) CitationUnited Nations Population Fund and Norman Myers. Population, Resources, and the Environment: The Critical Challenges. New York, NY: UNFPA, 1991.
MLA (9th ed.) CitationUnited Nations Population Fund and Norman Myers. Population, Resources, and the Environment: The Critical Challenges. UNFPA, 1991.
Warning: These citations may not always be 100% accurate.