Vyas, A. K. <br/><br/>
An introduction to agriculture / 
A. K. Vyas  
 - 4th rev. ed. 
 - New Delhi :   Jain Bros.,   2009. 
 - 492 p. :  ill. ;  25 cm. 
<br/><br/><label>Dewey Class. No.: </label>630  / VYI 2009