Hudson, Norman. <br/><br/>
Soil conservation / 
Norman Hudson. 
 - London :  Batsford Limited,  1981. 
 - 320 p. :  ill. ;  21 cm. 
<br/><br/>Includes index. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil conservation.