MORGAN, R. P. C. <br/><br/>
Soil Conservation Problams & Prospects 

 - Newyork  John Wiley & Sons  1981 
 - xvi,576p. 
<br/><br/><label>ISBN: </label>0-471-27880-3 
<br/><br/><label>Dewey Class. No.: </label>631.45