Chinnappa,B. <br/><br/>
Economics of Energy Use in Cropping Systems 

 - New Delhi  Narendra Publishing House  2012 
<br/><br/><label>ISBN: </label>978-93-80428-41-3 
<br/><br/><label>LC Class. No.: </label>333.7/CHI  / 4 
<br/><br/><label>Dewey Class. No.: </label>333.7/CHI  / 4