Troeh, Frederick R. <br/><br/>
Soil and water conservation for productivity and environmental protection / 
by Frederick R. Troeh, J. Arthur Hobbs, Roy L. Donahue ; editorial assistance, Miriam R. Troeh. 
 - Englewood Cliffs, New Jersey :  Prentice-Hall,  c1980. 
 - xv, 718 pages :  Illustrations ;  24 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0138221553 
<br/><br/><label>LCCN: </label>80000364 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil conservation.<br/>Soil erosion.<br/>Water conservation.
<br/><br/><label>LC Class. No.: </label>S623  / .T76 1980 
<br/><br/><label>Dewey Class. No.: </label>333.7/2