Ogg, James G <br/><br/>
Concise Geologic Time Scale   
by James G Ogg, Gabi Ogg and Filix M Gradstein 
 - Cambridge  Cambridge University Press  2008 
 - 177p 
<br/><br/><label>ISBN: </label>9780521898492 
<br/><br/><label>Dewey Class. No.: </label>551.701  / P08