The Gap between rich and poor nations :  proceedings of a conference held by the International Economic Association at Bled, Yugoslavia / 
edited by Gustav Ranis. 
 - London :  Macmillan,  1972. 
 - xxii, 439 p. :  ill. 
<br/><br/><label>ISBN: </label>0333131932 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economic history--1945-1971.<br/>Economic assistance--Developing countries.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Developing countries--Economic conditions.