Buol, S. W. <br/><br/>
Soil genesis and classification / 
S.W. Buol, F.D. Hole, R.J. McCracken 
 - 2nd ed. 
 - Ames, Iowa :  The Iowa State University Press,  1980 
 - viii , 404 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and indexes 
<br/><br/><label>ISBN: </label>081381460X 
<br/><br/><label>LCCN: </label>79-015992 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil science<br/>Soil formation<br/>Soil--Classification