@book{2271,
	author = {International Conference on Input-Output Analysis and Barna, Tibor, and Università di Pisa.},
	title = {The structural interdependence of the economy :},
	publisher = {Wiley,},
	year = {1954.},
	address = {New York :},
	note = {At head of title: University of Pisa -  Faculty of Economics.}
}