Wormington, H.M. <br/><br/>
Ancient Mn in North America 

 - iv Edition 
 - Denver, Colorado  The Denver Museum of Natural History   1957 
 - xviii, 322p.  : ill  , map ,  23 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Universal Decimal Class. No.: </label>9  / FF12