Eckholm, Erik P. <br/><br/>
Losing ground :  environmental stress and world food prospects / 
Erik P. Eckholm. 
 - 1st ed. 
 - New York :  Norton,  c1976. 
 - 223 p. ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. [203]-219. 
<br/><br/><label>ISBN: </label>0393064107.  0393091678 
<br/><br/><label>LCCN: </label>75041397  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture--Environmental aspects.<br/>Nature--Effect of human beings on.<br/>Food supply.<br/>Soil erosion.
<br/><br/><label>LC Class. No.: </label>S589.7  / .E23 1976 
<br/><br/><label>Dewey Class. No.: </label>338.91 Eck/Los