Air quality in selected cities in India, 1978-79: national air quality monitoring network 
by National Environmental Engineering Research Institute and edited by B.B. Sundaresan et. al 
 - Nagpur  National Environmental Engineering Research Institute  1980 
 - 224p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air pollution - Statistics - India
<br/><br/><label>Dewey Class. No.: </label>X91065x54 N213