Vasarhelyi, Paul <br/><br/>
Unesco computerized data retrieval system for documentation in the social and human sciences including an analysis of the present system: reports and papers in the social science 
by Paul Vasarhelyi, 
 - Paris  Unesco  n.d. 
 - 43+p 
 - Dare no. 27 .
<br/><br/><label>Dewey Class. No.: </label>I5372 V44