Hudson, Norman <br/><br/>
Soil conservation / 
Norman Hudson 
 - London :  B. T. Batsford,  1971 
 - 320 p. :  ill. ;  22 cm. 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0713405622 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil conservation<br/>Soil erosion