Simpson, Ken. <br/><br/>
Soil/ 
Ken Simpson 
 - London :  Longman  1983 
 - x,238p.:ill. 
<br/><br/>Includes  Bibliographies 
<br/><br/><label>ISBN: </label>582446414 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>LC Class. No.: </label>S 591