International Potash Institute <br/><br/>
Fertilizer use and protein production 

 - Switzerland  International Potash Institute  1975 
 - 307p 
<br/><br/>International Potash Institute: Fertilizer use and protein production.  Switzerland.  International Potash Institute, 1975.--(631.806INT)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>631.806  / IPI