Ambastha, C. K. <br/><br/>
Communication patterns in innovation development , extension and client systems - a systems approach 

 - Delhi  B. R. Publishing  1986 
 - x,336p. 
<br/><br/><label>ISBN: </label> RS 160.00 
<br/><br/><label>Source: </label> RS 160.00 
<br/><br/><label>Dewey Class. No.: </label>630.7 AMB