Cunningham William P <br/><br/>
Environmental science 

 - 5 
 - Boston, USA  McGraw-Hill  1999 
 - xxii,650p. 
<br/><br/><label>ISBN: </label>0-07-115681-X 
<br/><br/><label>Source: </label>Reference 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental problems and services; Environmental science