@book{54656,
	author = {United Nations. and United Nations.},
	title = {The determinants and consequences of population trends :},
	publisher = {United Nations,},
	year = {1973.},
	series = {[Document] - United Nations ; ST/SOA/SER. A/50-[Add. 1] : Population studies ; no. 50},
	address = {New York :},
	note = {First ed., 1953, prepared by the Department under its earlier name: Department of Social Affairs.}
}