a Enger, Eldon D. <br/><br/>
\a Environmental Science :  \b A Study of Interrelationships  \h [Text] 
\c /by Eldon D. Enger, Bradley F. Smith 
 - \a 10th ed. 
 - \a Boston :  \b McGraw-Hill Co.  \c 2006 
 - \a xxiv,476p.:  \b ill. 
<br/><br/> \a Includes Index 
<br/><br/><label>ISBN: </label>\a 007252829X 
<br/><br/><label>LC Class. No.: </label>\a GE 105.E54 Eng  / \b 515640