Samuelson, Paul A Economics : an introductory analysis / Paul A Samuelson . - 4th ed. . - London : Mc Graw Hill, 1958 xx, 810 p. : diag, graph, table ; 24 cm. 5th ed. 1961, 853 p. 19th ed.2017, 916 p. Chennai, McGraw Hill by Paul A.Samuelson & William D. Nordhaus ISBN 9780070700710 : * Economics * Nordhaus, William D., auth