Withgott, Jay <br/><br/>
Essential environment :  the science behind the stories / 
Jay Withgott, Matthew Laposata 
 - 4th ed. 
 - Upper Saddle River, N. J. :  Pearson,  c2012 
 - xii, 418 p. :  ill. (chiefly col.), photos ;  28 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780321752901 0321752902 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences