Chhatwal, G R <br/><br/>
Encylopaedia of Environmental Energy Resources Vol 1 

 - New Delhi  Anmol Publications  1998 
<br/><br/><label>Subjects--Uniform Titles: </label>--EcologyPost Graduate Reference
<br/><br/><label>Subjects--Topical Terms: </label><br/>Life Sciences--BiologyChemistry
<br/><br/><label>Dewey Class. No.: </label>577  / CHH-E