Read, C. B. <br/><br/>
Floras of the Pocono formation and Price sandstone in parts of Pennsylvania, Maryland, West Virginia, and Virginia,  including descriptions of 22 new species, 1 new genus, and 4 new combinations of Mississippian age. 

 - Washington,  U.S.Govt.Print.Off.,  1955. 
 - 32 p.  20 plates, map.  29 cm. 
<br/><br/>"Literature cited" : p.29-30. 
<br/><br/><label>LCCN: </label>gs 55000271  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Paleobotany--Mississippian<br/>Paleobotany--United States
<br/><br/><label>LC Class. No.: </label>QE75  / .P9 no. 263 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 19.16:263