Soil conservation:   An international study  
/ Food and agriculture organization of the United Nations  
 - Washington:   Food And Agriculture Organization of The United Nations,   1948 
 - viii, 199p. 
 - FAO agriculture studies   2 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture 
<br/><br/><label>Subjects--Index Terms: </label>Economic factors  Farm lands  
<br/><br/><label>Universal Decimal Class. No.: </label>631.4004.4  / H8