KOHNKE (Helmut); BERTRAND (Anson R) <br/><br/>
Soil Conservation 

 -  1959  McGraw Hill Book Company Inc. 
 - 1-298  0  Paper 
<br/><br/> Hard Binding 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil & Water Conservation
<br/><br/><label>Dewey Class. No.: </label>DT1:4C     J9;1