United Nations Population Fund, Engelman, R., Macharia, J., & Kollodge, R. (2009). UNFPA state of world population 2009: Facing a changing world : women, population and climate. United Nations Population Fund.
Chicago Style (17th ed.) CitationUnited Nations Population Fund, Robert Engelman, Janet Macharia, and Richard Kollodge. UNFPA State of World Population 2009: Facing a Changing World : Women, Population and Climate. [New York]: United Nations Population Fund, 2009.
MLA (9th ed.) CitationUnited Nations Population Fund, et al. UNFPA State of World Population 2009: Facing a Changing World : Women, Population and Climate. United Nations Population Fund, 2009.
Warning: These citations may not always be 100% accurate.