Soil genesis and classification / 
S.W. Buol ... [et.al]. 
 - 5th ed. 
 - India ;  Ames, Iowa :  Blackwell ;  Iowa State Press,  2003. 
 - xvi, 494 p. :  ill., maps ;  26 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0813828732 (alk. paper) 1405120827 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil science.<br/>Soil formation.<br/>Soils--Classification.
<br/><br/><label>Dewey Class. No.: </label>631.4  / SOI 2003