Soil and water conservation engineering /    
edited by Glenn O. Schw ab, [et al]. 
 - 3rd ed. 
 - New York :   Wiley,   1981. 
 - p.:    24 cm. 
<br/><br/>  Previous 2 editions published in 1955 and 1966 entered under R. K. F evert. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil conservation ----Africa----<br/>Water conservation.----Africa----<br/>agricultural engineering.----Africa----
<br/><br/><label>Dewey Class. No.: </label>631.4 SOI