Chhatwal, G. R (Editor) <br/><br/>
Encyclopedia of environmental pollution &its control 

 - New Delhi  Anmol Publications  1989 
 - 6v ; vi,204p ; vi,200p. ; viii,335p. ; vi,301p. ; vi,532p. 
<br/><br/><label>Dewey Class. No.: </label>304.203 ENC