Tolba, Mostafa Kamal. <br/><br/>
Earth matters / 
Mostafa Kamal Tolba ; selected and edited by Robert Lamb & Patrick Allen. 
 - Nairobi, Kenya :  UNEP,  1983. 
 - viii, 163 p. :  ill. ;  25 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9280710745 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental protection.