Harbaugh, John Warvelle,  1926- , <br/><br/>
Stratigraphy and the geologic time scale 
[by] John W.Harbaugh.  
 - 2nd ed. 
 - vii, 136 p.  illus.  23 cm.  
 - Brown foundations of earth science series  .
<br/><br/> Includes bibliographies.  
<br/><br/><label>ISBN: </label>0697050114  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology, Stratigraphic. <br/>Geological time.