Enger, Eldon D. <br/><br/>
Environmental science : a study of interrelationships /  
Eldon D. Enge , Bradly F Smith. 
 - 7th ed /   . 
 - New Delhi :   McGraw Hill ,   2000. 
 - 434p. :   ill., pict. ;   23cm .  
<br/><br/>Include index 
<br/><br/><label>ISBN: </label> USD 21.95 (Pbk) 
<br/><br/><label>Subjects--Index Terms: </label>ENVIRONDENTAL-SCIENCE  
<br/><br/><label>Dewey Class. No.: </label>628  / ENG/E