Trivedi, P.R.. <br/><br/>
Environmental air pollution /  
P.R. Tridevi, Gurdeep Raj. 
 - New Delhi :   Akashdeep Publishing House ,   1992. 
 - vii ,296p :   ill. ;   23cm .  
 - Encyclopaedia of Environmental science ;4,       ; .
 - Encyclopaedia of Environmental science ;4,       ; .
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<br/><br/><label>ISBN: </label>8171582427  Rs.450.00 
<br/><br/><label>Subjects--Index Terms: </label>POLLUTION AIR-POLLUTION 
<br/><br/><label>Dewey Class. No.: </label>363.7392  / TRI/E