Samuelson, Paul Anthony, 1915- Economics / Paul A. Samuelson. - 11th ed. / with the assistance in statistical updating of William Samuelson. - New York : McGraw-Hill, c1980. - xxv, 861 p. : ill. ; 24 cm. Includes bibliographical references and index. ISBN: 0070545952 : $18.50 (est.) Subjects--Topical Terms: Economics. LC Class. No.: HB171.5 / .S25 1980