Soil Science :  Society of American / 

 -  1968. 
 - 606  Pages; 
<br/><br/>Soil  Fertility and plant nutrition Letter of editor 
<br/><br/><br/>In English 
<br/><br/> Pbk. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>32 annual meeting soil science of American <br/>Proceedings
<br/><br/><label>Dewey Class. No.: </label>630.2 PRO 1968