Hedberg, Hollis D. <br/><br/>
International Stratigraphic guide; a guide to stratigraphic classification, terminology, and procedure 

 - New York  Wiley Interscience Publication  1976 
 - 200 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CORRELACION<br/>ESTRATIGRAFÍA
<br/><br/><label>Universal Decimal Class. No.: </label>551.7=02/H34