Levin, Donald A. <br/><br/>
Origin, Expansion, and Demise of Plant Species 
Levin, Donald A. 
 -  Oxford University Press  2000 
 - On-campus e-Book by ebrary under Digital Library Program of Higher Education Commission (HEC) of Pakistan 
<br/><br/><label>ISBN: </label>9780195351958     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Life Science