Chitkara, M.G.. <br/><br/>
Encyclopaedia of ecology, environment and pollution /  
M.G. Chitkara. 
 - New Delhi :   APH Publishing ,   1998. 
 - 15V. :   figs ;   24cm .  
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<br/><br/><label>ISBN: </label>8170248809  Rs.11000.00 
<br/><br/><label>Subjects--Index Terms: </label>ECOLOGY POLLUTION 
<br/><br/><label>Dewey Class. No.: </label>577.03  / CHI/E