Troeh, Frederick R. <br/><br/>
Soil and water conservation for productivity and environmental protection editorial assistance, Miriam R. Troeh 
Frederick R. Troeh, J. Arthur Hobbs, Roy L. Donahue 
 - Englewood Cliffs, N.J.  Prentice-Hall  c1980 
 - xv, 718 p.  ill.  24 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil conservation<br/>Soil erosion<br/>Water conservation
<br/><br/><label>Dewey Class. No.: </label>333.7  / 2