Environmental education :  Essential of knowledge for sustainable development / 
Muthoka Margaret G., Assumpta B. Rego. Rimbui Zipporah K. 
 - Nairobi Kenya ;  Longhorn Pub.,  1998. 
 - xvi,358 p,:  ill,; 
<br/><br/><label>ISBN: </label>9966499075 
<br/><br/><label>LC Class. No.: </label>GE70  / .M8