Soil and water conservation engineering / 
Richard K. Frevert. ...[et al.]. 
 - New York :  John Willey,  c 1955. 
 - xiii, 479 p. :  ill. ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/>337  337 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil conservation.<br/>Water conservation.
<br/><br/><label>Dewey Class. No.: </label>631.4 / S34