Chatterjee, B.N. <br/><br/>
Cropping system (theory & practice) 
B.N. Chatterjee 
 - New Delhi  Oxford & IBH publishing  1984 
 - 326p. 
<br/><br/><label>ISBN: </label> 20.5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany