APA
"United Nations E. A. S. A. (. o., "United Nations E. A. S. A. (. o., . (1971). Concise summary of the world population situation in 1970. New: York United Nations USA.
Chicago
"United Nations Economic And Social Affairs (Deptt of....)", "United Nations Economic And Social Affairs (Deptt of....)", . 1971. Concise summary of the world population situation in 1970. New: York United Nations USA.
Harvard
"United Nations E. A. S. A. (. o., "United Nations E. A. S. A. (. o., . (1971). Concise summary of the world population situation in 1970. New: York United Nations USA.
MLA
"United Nations Economic And Social Affairs (Deptt of....)", "United Nations Economic And Social Affairs (Deptt of....)", . Concise summary of the world population situation in 1970. New: York United Nations USA. 1971.
