Troeh, Frederick <br/><br/>
Soil and Water Conservation- For productivity and Environmental Protection 

 - New jersey  Prentice Hall  1980 
 - 718p. 
<br/><br/><label>ISBN: </label>0138221553 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil Conservation 
<br/><br/><label>Dewey Class. No.: </label>631.45 TRO