Bergstrom, Theodore C. Workouts in intermediate microeconomics / Theodore C. Bergstrom and Hal R. Varian. - 9th ed. - New York : W. W. Norton, c2014. - 566 [37] p. ; ill. ; 27 cm. ISBN: 9780393922615 Subjects--Topical Terms: Microeconomics. LC Class. No.: HB172 / .B47 2014