Wells, Edward. <br/><br/>
Lab manual for environmental science / 
Edward Wells. 
 - Belmont, CA :  Brooks/Cole Cengage Learning,  c2009. 
 - 195 pages :  illustrations ;  28 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9780495560241 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental protection.<br/>Environmental sciences.<br/>Human ecology.