McConnell, Campbell R. Economics : principles, problems, and policies / Campbell R. McConnell, Stanley L. Brue. - 11th ed. - New York McGraw-Hill c1990. - xlii, 866, 34, 33 p. ill. 27 cm. Includes bibliographical references. ISBN: 0070449678 : $39.95 LCCN: 89-012570 Subjects--Topical Terms: Economics. Dewey Class. No.: 330