APA
"UNITED NATIONS E. A. S. A. (., "UNITED NATIONS E. A. S. A. (., . (1997). Global population policy data base. New: York United Nations USA.
Chicago
"UNITED NATIONS ECONOMICN AND SOCIAL AFFAIRS (D/O).", "UNITED NATIONS ECONOMICN AND SOCIAL AFFAIRS (D/O).", . 1997. Global population policy data base. New: York United Nations USA.
Harvard
"UNITED NATIONS E. A. S. A. (., "UNITED NATIONS E. A. S. A. (., . (1997). Global population policy data base. New: York United Nations USA.
MLA
"UNITED NATIONS ECONOMICN AND SOCIAL AFFAIRS (D/O).", "UNITED NATIONS ECONOMICN AND SOCIAL AFFAIRS (D/O).", . Global population policy data base. New: York United Nations USA. 1997.
