Peterson, Willis L. Principles of economics / Willis L. Peterson. - Homewood, Ill. : R. D. Irwin, 1971. - 2 v. ; 23 cm. V. 1 Macro -- V. 2 Micro. Subjects--Topical Terms: MacroeconomicsMicroeconomics LC Class. No.: HB172.5 / .P47 1971 Dewey Class. No.: 338.5 / P485p3