Cunningham, William P. <br/><br/>
Principles of environmental science :  inquiry & application / 
William P. Cunningham, Mary Ann Cunningham. 
 - 7th ed. 
 - New York :  McGraw-Hill,  2013. 
 - xxiv, 399 p. :  ill. ;  28 cm. 
<br/><br/><label>ISBN: </label>9780073532516  RM513.61 0073532517 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences--Textbooks.