@book{54955,
	author = {Lange, Oskar,},
	title = {Essays on economic planning /},
	publisher = {Statistical Pub. Society},
	year = {[1967]},
	series = {Studies relating to planning for national development, 1},
	address = {Calcutta,},
	edition = {2d ed.]},
	note = {At head of title: Indian Statistical Institute.}
}