Salvador, Amos <br/><br/>
International stratigraphic guide: a guide to stratigraphic classification, terminology and procedure 

 - 2a ed. 
 - Boulder, CO  Geological Society of America  1994 
 - 214 p.  ilus. 
<br/><br/> International Subcommission on Stratigraphic Classification of IUGS International Commission on Stratigraphy 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ESTRATIGRAFÍA<br/>LEXICOS
<br/><br/><label>Universal Decimal Class. No.: </label>551.7=02/S18