Cunningham, William P. <br/><br/>
Principles of environmental science :  inquiry and applications / 
William P. Cunningham, Mary Ann Cunningham 
 - 2nd ed. 
 - New Delhi :  Tata McGraw-Hill,  2004 
 - 424 p. :  ill. (some col.), col. maps ;  28 cm 
<br/><br/><label>ISBN: </label>0072509317 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences