Mengel, K., Kirkby, E.A.  <br/><br/>
Principles of plant nutrition  (Book) 

 - 2nd ed. 
 - Worblaufen-Bern, Switzerland  International Potash Institute  1979 
 - 593 p.  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant--Nutrition
<br/><br/><label>Universal Decimal Class. No.: </label>581.13 MEN  / 14330