Cooke, C. W. - Cushman, J. A. <br/><br/>
Orbitoid Foraminifera of the genus orthophragmina from Georgia and Florida. 

 - Washington  Government Printing Office  1917 
 - pp. 109-124 
<br/><br/> Impreso 
<br/><br/><br/>Ingles 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MINERIA