Trivedi, P.R. <br/><br/>
Encyclopaedia of Environmental Sciences : Vol 11 Environmental Industrial Pollution IV 

 - New Delhi :  Akashdeep  Publishing House,   1992. 
 - 1218p.;  21cm 
<br/><br/><label>ISBN: </label>8171582796 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human Ecology
<br/><br/><label>Dewey Class. No.: </label>304.203  / TRI