Tolba, Mostafa Kamal <br/><br/>
Earth matters / 
Mostafa Kamal Tolba ; selected and edited by Robert Lamb and Patrick Allen. 
 - Nairobi:   United Nations Environment Programme,   c1983.  
 - viii, 163 p. ;  25 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>9280710745 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental protection
<br/><br/><label>Dewey Class. No.: </label>333.72