Rathakrishnan, T <br/><br/>
Communication techniques in farm extension 
Dr.T. Rathakrishnman /Dr.M. Isrteal Thomas / Dr. L. Nirmala 
 - India  Scientific  2010 
 - viii,254pg.ill  hbk 
<br/><br/><label>ISBN: </label>9788172336073 
<br/><br/><label>LC Class. No.: </label>S 494.5. C6. R3 2010