Batscha, Robert. <br/><br/>
The effectiveness of dissemination :   methods for social and econo mic development research /  
by Robert Batscha. 
 - Paris :   OECD,   1976. 
 - p. ;    24 cm. 
 - Technical papers   .
<br/><br/>  Includes bibliographical references ( p.200-201). 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economic development --Research.------