APA
"United Nations E. a. S. A. (. o., "United Nations E. a. S. A. (. o., . (1968). Concept of a stable population. New: York UN.
Chicago
"United Nations Economic and Social Affairs (Deptt of-)", "United Nations Economic and Social Affairs (Deptt of-)", . 1968. Concept of a stable population. New: York UN.
Harvard
"United Nations E. a. S. A. (. o., "United Nations E. a. S. A. (. o., . (1968). Concept of a stable population. New: York UN.
MLA
"United Nations Economic and Social Affairs (Deptt of-)", "United Nations Economic and Social Affairs (Deptt of-)", . Concept of a stable population. New: York UN. 1968.
