Harbaugh,John W <br/><br/>
Stratigraphy and the geologic time scale 
John W. Harbaugh 
 - 2nd edition 
 - Lawa:  WMC Brown,  1968. 
 - vii, 136p. 
<br/><br/> PB 
<br/><br/><br/>Eng 
<br/><br/><label>ISBN: </label>0697050114 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Stratigraphic correlation
<br/><br/><label>Dewey Class. No.: </label>551.701  / HAS