Delimitation of groups of least-developed nations on the basis of socio-economic, political and environmental data, 1974 

 -  Clark University  1974 
 -  ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Developing countries<br/> Commerce<br/>Economic assistance<br/>Economic conditions
<br/><br/><label>LC Class. No.: </label>IRA HC60.D445C52