The effectiveness of dissemination methods for social and economic development research 
by Robert Batscha  
 - Paris  Development Centre of the Organisation for Economic Cooperation and Development  1976  
 - 201p  25cm. 
<br/><br/><label>ISBN: </label>9264114904 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economic development--Research
<br/><br/><label>LC Class. No.: </label>HD82