Wagner, Travis. <br/><br/>
Environmental science :  active learning laboratories and applied problem sets / 
Travis Wagner and Robert Sanford. 
 - 2nd ed. 
 - Hoboken, N.J. :  John Wiley & Sons,  c2010. 
 - xii, 240 p. :  ill. ;  28 cm. 
<br/><br/><label>ISBN: </label>9780470087671 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences--Problems, exercises, etc.<br/>Environmental sciences--Study and teaching.