Rich and poor countries /
Singer, H. W.
Rich and poor countries / by Hans W. Singer and Javed A. Ansari. - London : Allen & Unwin, 1977. - 228 p. : ill. ; 23 cm. - Studies in economics ; 12 .
Rich and poor countries / by Hans W. Singer and Javed A. Ansari. - London : Allen & Unwin, 1977. - 228 p. : ill. ; 23 cm. - Studies in economics ; 12 .