Boels, D. <br/><br/>
Soil degradation/ 
D. Boels; D.B. Davies; A.E. Johnston 
 - 280p/25cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EROSION
<br/><br/><label>Dewey Class. No.: </label>631.45  / BOE 1982