Troeh, Frederick R. <br/><br/>
Soil and water conservation for productivity and environmental protection / 
Frederick R. Troeh, J. Arthur Hobbs, Roy L. Donahue ; editorial assistance, Miriam R. Troeh. 
 - Englewood Cliffs, N.J. :  Prentice-Hall,  c1980. 
 - xv, 718 p. :  ill. ; 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0138221553 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil conservation.<br/>Water conservation.<br/>Soil erosion.
<br/><br/><label>Dewey Class. No.: </label>333.7/2  / TRO