Harland, W. B.  <br/><br/>
A geologic time scale 1989 
/by  W. B. Harland 
 - Cambridge  Cambridge University Press  1990 
 - xv,263p. 
<br/><br/><label>ISBN: </label>0-521-38765-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geological time
<br/><br/><label>Dewey Class. No.: </label>551.701  / HAR/A