Chitkara, M.G. <br/><br/>
Encyclopaedia of ecology environment and pollution Vol.1 :  The mother earth / 
by M.G.Chitkara 
 - New Delhi :  Aph Publishing Corporation ,  1998 . 
 - 381 p.  Hard Back 
<br/><br/><label>ISBN: </label>81 7024 880 9 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Science <br/>Biology <br/>Ecology<br/>Encyclopaedia
<br/><br/><label>Dewey Class. No.: </label>574.503  / CHI-E V.1