Chandra, K Ambastha  . <br/><br/>
Communication patterns in innovation development, extension and client systems :   a systems approach / 
C K Ambastha. 
 - Delhi :   B R Publishing ,   1986. 
 - 336 p. :   ills.,figs,tables ;   27 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>8170183456  Rs. 160.00 (Hb) 
<br/><br/><label>Subjects--Index Terms: </label>AGRICULTURAL EXTENSION WORK - GOVERNMENT POLICY 
<br/><br/><label>Dewey Class. No.: </label>630.715  / AMB/C