Technology, Science and Environment/ 
Edited by Alozie, Princewill L. 
 - 3rd ed. 
 - Nigeria:  EL-Sapphire Limited;  2006. 
 - x,269p.:  ill;  21cm. 
<br/><br/>Includes Bibliography 
<br/><br/><label>ISBN: </label>9783791338 
<br/><br/><label>Source: </label>B-27699 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>LC Class. No.: </label>Q162  / .A56 2006