Kohnke, Helmut <br/><br/>
Soil science simplified 

 -  Balt Publishers  1962 
 - vi,78p.  ill.  21cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil science
<br/><br/><label>LC Class. No.: </label>PAM S591.K63