S. P. Sen <br/><br/>
Nitrogen assimilation and crop productivity 

 - New Delhi  Associated Publishing Co.  1978 
 - 313p 
<br/><br/>S. P. Sen; Y. P. Abrol & S. K. Sinha: Nitrogen assimilation and crop productivity.  New Delhi.  Associated Publishing Co., 1978.--(589.9506SEN)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>589.9506  / SEN