Gupta U S Ed. <br/><br/>
Physiological aspects of crop nutrition and resistance 

 - Delhi  Atma Ram          1977 
 - viii, 383p.  cm. 
<br/><br/><label>Standard No.: </label>56247 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Ecology<br/>Agriculture
<br/><br/><label>Dewey Class. No.: </label>J:9573, L7