APA
"United Nations I. E. a. S. A. (. o., "United Nations I. E. a. S. A. (. o., . (1983). Indirect techniques for demographic estimation. New: York UN.
Chicago
"United Nations International Economic and Social Affairs (Deptt off-)", "United Nations International Economic and Social Affairs (Deptt off-)", . 1983. Indirect techniques for demographic estimation. New: York UN.
Harvard
"United Nations I. E. a. S. A. (. o., "United Nations I. E. a. S. A. (. o., . (1983). Indirect techniques for demographic estimation. New: York UN.
MLA
"United Nations International Economic and Social Affairs (Deptt off-)", "United Nations International Economic and Social Affairs (Deptt off-)", . Indirect techniques for demographic estimation. New: York UN. 1983.
