Singer, Hans W. Rich and poor countries / Hans W. Singer and Javed A. Ansari. - 3rd ed. - London : George Allen & Unwin, c 1982. - 270 p. ; 22 cm. - Studies in economys ; 12. . 311 311 ISBN: 0-04-330321-8 Subjects--Topical Terms: Economic. Dewey Class. No.: 338.9 / S64r