Kohnke, Helmut  1921- <br/><br/>
Soil conservation/ 
Helmut Kohnke and Anson R. Bertrand 
 - New York:  McGraw-Hill,  1959 
 - vii, 219 p.:  ill.;  23 cm. 
 - McGraw - Hill publications in the agricultural series .
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> $ 6.75 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil conservation<br/>Soil management<br/>Soil erosion<br/>Soil moisture
<br/><br/><label>Dewey Class. No.: </label>631.45