Cunningham, William P. <br/><br/>
Principles of environmental science : inquiry and applications /  
William P Cunningham and Mary Ann  Cunningham. 
 - 4th ed /   . 
 - New Delhi :   Tata McGraw-Hill Publishing ,   2007. 
 - xxii,409p. :   ills.,picts ;   25cm .  
<br/><br/>Includes appendix and index 
<br/><br/><label>ISBN: </label>0070647720  RS299.00 
<br/><br/><label>Subjects--Index Terms: </label>ENVIRONMENTAL SCIENCE  
<br/><br/><label>Dewey Class. No.: </label>363.7  / CUN/P