World atlas of desertification / 
UNEP, United Nations Environment Programme. 
 - London ;  Baltimore :  Edward Arnold,  1992. 
 - 1 atlas (ix, 69 p.) :  col. maps ;  31 x 42 cm. 
<br/><br/> "Dr. Nicholas Middleton ... in collaboration with Dr. David Thomas ... produced the text ... and contributed to the final design and layout"--Acknowledgements. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/>Global -- Continental Africa -- Case studies. 
<br/><br/><label>ISBN: </label>0340555122 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Desertification--Maps.<br/>Soil degradation--Maps.<br/>Soil degradation--Africa--Maps.
<br/><br/><label>LC Class. No.: </label>G1046.J4  / M5 1992