Soil conservation :  an international study. 

 - Washington :  FAO ,  1948 
 - 189p. :  ill. ;  23 cm. 
 - FAO agricultural studies .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture<br/>Soil conservation<br/>Soils
<br/><br/><label>Dewey Class. No.: </label>631.4  / FAO-6