McConnell, Campbell R. Economics : principles, problems, and policies / Campbell R. McConnell, Stanley L. Brue, Sean M. Flynn. - Twentieth edition. - xxxvii, 889 pages, 64 variously numbered pages : illustrations ; 27 cm. - The McGraw-Hill series in economics . Includes index. ISBN: 9780078021756 (student edition : alk. paper) 0078021758 (student edition : alk. paper) 9780077660581 (instructor's edition : alk. paper) 0077660587 (instructor's edition : alk. paper) Subjects--Topical Terms: Economics. Dewey Class. No.: 330 / MAC 2015