P. R. R. Sinha <br/><br/>
Studies in extension education 

 - Hyderabad  National Institute Of Community Devp ( NICD )  1972 
 - 150p 
<br/><br/>P. R. R. Sinha: Studies in extension education.  Hyderabad.  National Institute Of Community Devp ( NICD ), 1972.--(307SIN)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>307  / SIN