Hudson, Norman. <br/><br/>
Soil conservation / 
Norman Hudson. 
 - London :  Batsford,  1971. 
 - 3-320 p. :  ill., maps. 
<br/><br/><label>ISBN: </label>0713405600 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil conservation.<br/>Soil erosion.