APA
United Nations Regional Seminar on Ecological Implications of Rural and Urban Population Growth, . (1971). Proceeding. New: York UN.
Chicago
United Nations Regional Seminar on Ecological Implications of Rural and Urban Population Growth, . 1971. Proceeding. New: York UN.
Harvard
United Nations Regional Seminar on Ecological Implications of Rural and Urban Population Growth, . (1971). Proceeding. New: York UN.
MLA
United Nations Regional Seminar on Ecological Implications of Rural and Urban Population Growth, . Proceeding. New: York UN. 1971.
