Vergelin, Cesar F. <br/><br/>
Water erosion in the carcarana watershed :   an economic study / 
Cesar F. Vergelin 
 - Wisconsin :  Wisconsin University  1971 
 - xi, 181p. :  ill. ;  30 cm.  
 - Ph. D. Thesis in agriculture .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil erosion
<br/><br/><label>Gov. Doc. Class. No.: </label>Th 631.455 VER