@book{2873,
	author = {Cowles Commission for Research in Economics. and Koopmans, Tjalling Charles,},
	title = {Activity analysis of production and allocation :},
	publisher = {John Wiley,},
	year = {c1951 [Printing 1964, 1965]},
	series = {Cowles Commission for Research in Economics.},
	address = {New York :}
}