Buol S W & others <br/><br/>
Soil genesis and classification 
Buol S W & others 
 - 3rd 
 - Ames  Lowa State University Press         1989 
 - x,466p. Bib p. 393-438  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural Geography
<br/><br/><label>Dewey Class. No.: </label>U672(J:1), L3;M9