Life on earth:  an encyclopedia of biodiversity,ecology ,and evolutionV.1 / 
edited by Niles Eldredge 
 - New Delhi :  Pentagon Press,  2004. 
<br/><br/><label>ISBN: </label>8186830820 
<br/><br/><label>Subjects--Index Terms: </label>Biological Diversity - Encyclopedias Ecology - Encyclopedias Evolution - Encyclopedias