Buol, S.W <br/><br/>
Soil genesis and classification / 
by S.W. Buol...[et al.] 
 - 4th ed. 
 - New Delhi:  Panima Publishing Corporation,   1998. 
 - xvi, 537p. 
<br/><br/><label>ISBN: </label>865535241 
<br/><br/><label>Dewey Class. No.: </label>J:17  / N7