Chhatwal, G.R. . <br/><br/>
Environmental Air Pollution and its Control /  Textual Documents 
G.R. Chhatwal...(et al). 
 - 1st ed. / 
 - New Delhi :  Anmol Publications ,  1989. 
 - iv,591p. :  ill ;  22cm . 
<br/><br/><label>ISBN: </label>81-7041-213-7 
<br/><br/><label>Subjects--Index Terms: </label>Environmental Science Air Pollution G-Anthropology 
<br/><br/><label>Dewey Class. No.: </label>574.52  / Ch 429 En