@book{248647,
	author = {International Conference on Input-Output Techniques, and Leontief, Wassily, and United Nations.},
	title = {Contributions to input-output analysis /},
	publisher = {North-Holland Pub. Co.,},
	year = {1970.},
	series = {Proceedings of the Fourth International Conference on Input-Output Techniques, Geneva, 8-12 January 1968.},
	address = {Amsterdam,},
	note = {Conference sponsored by United Nations and the Harvard Economic Research Project under a grant from the Ford Foundation.}
}