@book{20631,
	author = {United Nations Research for Social Development (Geneva)},
	title = {Studies in the methodology of social planning},
	publisher = {United Nations},
	year = {1970},
	address = {Geneva},
	note = {Contents: Pt.1 A planning model for social development/by Jan Drewnowski, Claude Richard-Proust and Muthu Subramanian-pt. ii Social aims in development plans/by Jan Drewnowski and Muthu Subramanian}
}