Sethi,  M.S.  <br/><br/>
Encyclopaedia of nature and environment / 
by M.S. Sethi and S.A. Iqbal. 
 - New Delhi :   Discovery,   1998 
 - 342 p.:   ill.  28 cm. 
<br/><br/><label>ISBN: </label>8171413927 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nature-Encyclopaedia.;Environment- Encyclopaedia
<br/><br/><label>Universal Decimal Class. No.: </label>363.7