Cooper, Arthur <br/><br/>
Permian brachiopods of west Texas, III 

 - Washington :  Smithsonian institution press,  1975 
 - 2 Vol., 795-1921: :  ill., tab. 
 - Smithsonian contributions to paleobiology, 19 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Faune brachiopode<br/>Permien
<br/><br/><label>Subjects--Index Terms: </label>Etats Unis  Texas