Colwell, J. D. <br/><br/>
Computations for estudies of soil fertility and fertilizer requirements 
J. D. Colwell 
 - ix,297 p. 
<br/><br/><label>ISBN: </label>0851984371 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Suelos y fertilidad<br/>Fertilizantes--requerimiento<br/>Fertilizantes
<br/><br/><label>Dewey Class. No.: </label>631.8  / COL 1978