Amacher, Ryan C. Principles of microeconomics / Ryan C. Amacher, Richard James Sweeney and Lioyd M. Valentine - New York : South-Western, c1980. - xv, 448 p. ; 24 cm. Includes index. ISBN: 0538081309 LCCN: Subjects--Topical Terms: MicroeconomicsEconomics LC Class. No.: A479 / . 1980 Dewey Class. No.: 338.5