Walstad, William B. Study Guide for Use With Macroecnomics. / William B. Walstad - 18th ed. - New York, Estados Unidos McGraw-Hill 2009 - 278 p. ; 28 cm. ISBN: 9780073368849 Subjects--Topical Terms: MACROECONOMIACIENCIAS ECONOMICAS Dewey Class. No.: 339 / W222