Yan, Chiou-Shuang Introduction to input-output economics / Chiou-Shuang Yan - New York : Holt, rivehart & winston, c1969. - x,134 p. : 21 cm. Includes index. ISBN: LCCN: Subjects--Topical Terms: EconomicsFrame workinputoutputRegional LC Class. No.: Y21i / . 1969