Berner, Robert A. <br/><br/>
Phanerozoic Carbon Cycle : CO2 and O2 
Berner, Robert A. 
 -  Oxford University Press  2004 
 - On-campus e-Book by ebrary under Digital Library Program of Higher Education Commission (HEC) of Pakistan 
<br/><br/><label>ISBN: </label>9780195346657     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical Science