Cowie, G. A. <br/><br/>
Potash  : its production and place in crop nutrition 

 - London :  Edward Arnold,  1951 
 - 172 p.  : ilus. 
<br/><br/><label>LCCN: </label>67230 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plantas--Nutrición.<br/>Potasio--Efecto en suelos.
<br/><br/><label>Dewey Class. No.: </label>631.83  / C68