Helmet, Fritz <br/><br/>
Environmental chemistry 

 - Delhi  IVY Publishing House  2003 
 - xviii, 314p 
<br/><br/><label>ISBN: </label>81-7890-077-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Acid mine drainage<br/>Air pollution<br/>Chemistry -- Environment<br/>Environmental chemistry<br/>Eutrophication<br/>Heavy metals<br/>Thermal pollution<br/>Waste water treatment<br/>Water pollution