Batscha, Robert <br/><br/>
Effectiveness of dissemination  mehods for social and economic development research\ 

 - Paris :  Development Centre of the organisation,  1976. 
 - 201p.: 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Socio economic development
<br/><br/><label>Dewey Class. No.: </label>307.2  / BAT N76E