APA
"United Nations I. E. A. S. A. (. o., "United Nations I. E. A. S. A. (. o., . (1979). World population trends and prospects by country 1950-2000. New: York United Nations USA.
Chicago
"United Nations International Economic And Social Affairs (Deptt of...)", "United Nations International Economic And Social Affairs (Deptt of...)", . 1979. World population trends and prospects by country 1950-2000. New: York United Nations USA.
Harvard
"United Nations I. E. A. S. A. (. o., "United Nations I. E. A. S. A. (. o., . (1979). World population trends and prospects by country 1950-2000. New: York United Nations USA.
MLA
"United Nations International Economic And Social Affairs (Deptt of...)", "United Nations International Economic And Social Affairs (Deptt of...)", . World population trends and prospects by country 1950-2000. New: York United Nations USA. 1979.