Chhawal, G.R. <br/><br/>
Encyclopaedia of environmental management 

 - New Delhi  Anmol  1998 
 - 1-141p. 
<br/><br/><label>ISBN: </label>8174886486 
<br/><br/><label>Subjects--Index Terms: </label>Environmental management 
<br/><br/><label>Dewey Class. No.: </label>557.068  / CHH.1-2