APA
"United Nations I. E. a. S. A. (. o., "United Nations I. E. a. S. A. (. o., . (1982). Demographic indicators of countries. New: York UN USA.
Chicago
"United Nations International Economic and Social Affairs (Deptt of-)", "United Nations International Economic and Social Affairs (Deptt of-)", . 1982. Demographic indicators of countries. New: York UN USA.
Harvard
"United Nations I. E. a. S. A. (. o., "United Nations I. E. a. S. A. (. o., . (1982). Demographic indicators of countries. New: York UN USA.
MLA
"United Nations International Economic and Social Affairs (Deptt of-)", "United Nations International Economic and Social Affairs (Deptt of-)", . Demographic indicators of countries. New: York UN USA. 1982.