APA
"UNITED NATIONS E. A. S. A., "UNITED NATIONS E. A. S. A., . (2004). Levels and trends of contraceptive use as assessed in 2002. New: York United Nations.
Chicago
"UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS", "UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS", . 2004. Levels and trends of contraceptive use as assessed in 2002. New: York United Nations.
Harvard
"UNITED NATIONS E. A. S. A., "UNITED NATIONS E. A. S. A., . (2004). Levels and trends of contraceptive use as assessed in 2002. New: York United Nations.
MLA
"UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS", "UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS", . Levels and trends of contraceptive use as assessed in 2002. New: York United Nations. 2004.
