Introduction to environmental science / 
Joel E. Unday [and four others]. 
 - 2015 edition. 
 - Malabon City :  Mutya Publishing House,  2015. 
 - 222 pages :  illustrations ;  26 cm. 
<br/><br/>Includes glossary and references. 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>9789718215395 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental science.
<br/><br/><label>Dewey Class. No.: </label>550  / In61