Ashman,M.R. <br/><br/>
Essential Soil Science :  a clear and concise  introduction to soil science / 
M.R.Ashman ,G.Puri 
 - U.S.A :  Blackwell publishing company ,  c2002 . 
 - viii,198p.:  ill.(B&W) ;  25cm 
<br/><br/> Includes: index (p.190-198) 
<br/><br/><label>ISBN: </label>9780632048854 
<br/><br/><label>Subjects--Topical Terms: </label><br/>agriculture
<br/><br/><label>Dewey Class. No.: </label>631.4  / ASH