Chhatwal, G R,Ed. <br/><br/>
Encyclopaedia of environmental soil and marine pollution.Vol.2 

 - New Delhi  Anmol Publications   1997 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental problems and services
<br/><br/><label>Dewey Class. No.: </label>363.703  / CHH.E