Samuelson, Paul A. 1915-2009. Economics; an introductory analysis [by] Paul A. Samuelson. - 7th ed. - New York, McGraw-Hill [1967] - xxi, 821 p. illus. (part col.) 24 cm. Bibliographical footnotes. LCCN: 67015434 Subjects--Topical Terms: Economics. LC Class. No.: HB 171.5 / SAM 1967 Dewey Class. No.: 330