Environmental science :  a shared responsibility towards the earth / 
Florenda I. Santiago, ... [et al.]. 
 - Manila :  Rex Book Store,  c1996. 
 - 162 pages:  illustrations. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p.155-159. 
<br/><br/><label>ISBN: </label>971232026X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences.<br/>Human ecology--Study and teaching.
<br/><br/><label>Dewey Class. No.: </label>333.72 En61 1996