Tolba, Mostafa Kamal. <br/><br/>
Earth matters / 
Mostafa Kamal Tolba ; selected and edited by Robert Lamb and Patrick Allen. 
 - Nairobi, Kenya :  United Nations Environment Programme,  1983. 
 - viii, 163 p. ;  25 cm. 
<br/><br/><label>ISBN: </label>9280710745 (pbk.) 
<br/><br/><label>LCCN: </label>85980587  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental protection.
<br/><br/><label>LC Class. No.: </label>TD170.3  / .T652 1983 
<br/><br/><label>Dewey Class. No.: </label>333.72