Hickey, Leo J. <br/><br/>
Stratigraphy and paleobotany of the Golden Valley Formation (Early Tertiary) of Western North Dakota 

 - Boulder, CO  Geological Society of America  1977 
 - 183 p.  ilus., map. 
 - Geological Society of America. Memoir  n.150 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>EOCENO<br/>ESTRATIGRAFÍA<br/>PALEOBOTANICA<br/>TERCIARIO
<br/><br/><label>Subjects--Geographic Terms: </label><br/>ESTADOS UNIDOS
<br/><br/><label>Universal Decimal Class. No.: </label>551.7+561(118.1-784-15)/H48