McEachern, William A. Economic principles : a contemporary introduction / William A. McEachern - 9th ed. - Mason, OH : South-Western Cengage Learning, c2012. - xxvi, 814 p. : ill. ; 29 cm. ISBN: 9780538453752 LCCN: Subjects--Topical Terms: Economics LC Class. No.: HB171.5 / .M475 2012