"Sinha, P. R. R." <br/><br/>
Studies in exteusion education 

 - Hyderabad  National Institute of Community Development  1972 
 - 151 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agrucultural extension work
<br/><br/><label>Dewey Class. No.: </label>630.715 STU