Eckholm, Erik P. <br/><br/>
Spreading deserts--the hand of man 
Erik Eckholm, Lester R. Brown 
 - [Washington]  [Worldwatch Institute]  1977 
 - 40 p.  ill.  22 cm 
 - Worldwatch paper  13 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Desertification
<br/><br/><label>Dewey Class. No.: </label>363