Economics : principles, problems, and policies / Campbell R. McConnell. McConnell, Campbell R. Economics. HB171.5 .M139 1966 330 20 MCE First ed. published in 1960 under title: Elementary economics: principles, problems, and policies. Includes bibliographical references and index. New York : McGraw-Hill, c1990. c1990. 1966 Text xlii, 866 p. : eng