Harland W B and others <br/><br/>
Geologic time scale 

 - Cambridge  Cambridge University Press          1982 
 - xi,131p.  cm. 
 - Cambridge Earth Science Seires .
<br/><br/><label>ISBN: </label>0 521 24728 4 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology
<br/><br/><label>Dewey Class. No.: </label>H5, M2