APA
"United Nations I. E. A. S. A. (. o., "United Nations I. E. A. S. A. (. o., . (1981). Population and development modelling. New: York United Nations Publications.
Chicago
"United Nations International Economic And Social Affairs (Deptt of-)", "United Nations International Economic And Social Affairs (Deptt of-)", . 1981. Population and development modelling. New: York United Nations Publications.
Harvard
"United Nations I. E. A. S. A. (. o., "United Nations I. E. A. S. A. (. o., . (1981). Population and development modelling. New: York United Nations Publications.
MLA
"United Nations International Economic And Social Affairs (Deptt of-)", "United Nations International Economic And Social Affairs (Deptt of-)", . Population and development modelling. New: York United Nations Publications. 1981.
