Hudson, Norman. <br/><br/>
Soil conservation / 
Norman Hudson. 
 - 2nd ed. 
 - Ithaca, NY :  Cornell University Press,  1981. 
 - 324 p. :  ill. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil conservation.<br/>Soil erosion.
<br/><br/><label>Dewey Class. No.: </label>631.45