APA
"United Nartions I. E. a. S. A. (. o., "United Nartions I. E. a. S. A. (. o., . (1990). Manual on population Census data processing using. New: York UN.
Chicago
"United Nartions International Economic and Social Affairs (Deptt of-)", "United Nartions International Economic and Social Affairs (Deptt of-)", . 1990. Manual on population Census data processing using. New: York UN.
Harvard
"United Nartions I. E. a. S. A. (. o., "United Nartions I. E. a. S. A. (. o., . (1990). Manual on population Census data processing using. New: York UN.
MLA
"United Nartions International Economic and Social Affairs (Deptt of-)", "United Nartions International Economic and Social Affairs (Deptt of-)", . Manual on population Census data processing using. New: York UN. 1990.
