Instability in export markets of under-developed countries in relati on to their ability to obtain foreign exchange from exports of primary commodities 1901 to 1950. 

 - New York :    United Nations,    1952. 
 - 94 p. :    ill. ;    28 cm. 
<br/><br/><label>Subjects--Corporate Names: </label><br/> United Nations.
<br/><br/><label>Subjects--Topical Terms: </label><br/> Export markerting -- Developing countries.