Varian, Hal R. Intermediate microeconomics : a modern approach / Hal R. Varian - 1st ed. - New York : W.W. Norton , 1987 - xviii, 587+34p.: ill.; 24 cm. Includes index. Subjects--Topical Terms: Economic modelsMicroeconomicsEconometricsEconomics Dewey Class. No.: 330 / VAR