Shepard, Wond <br/><br/>
Food or famine : the challenge of erosion  

 - New York  Macmillan  947 
 - 225 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>  Food<br/>  Food supply
<br/><br/><label>Dewey Class. No.: </label>631.45  / S547f 1945