Troeh, Frederick R. <br/><br/>
Soil and water conservation :  for productivity and environmental protection / 
Frederick R. Troeh, J. Arthur Hobbs, Roy L. Donahue. 
 - 4th ed. 
 - Upper Saddle River, N.J. :  Pearson/Education :  Prentice Hall,  c2004. 
 - xv, 656 p. :  ill., maps ;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0130968072 (alk. paper) 
<br/><br/><label>LCCN: </label>2002192987 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil conservation.<br/>Water conservation.
<br/><br/><label>LC Class. No.: </label>S623  / .T76 2004 
<br/><br/><label>Dewey Class. No.: </label>631.45