Scott, Dukinfield Henry <br/><br/>
Studies in fossil botany, Vol.1: Pteridophyta 

 - 3 
 -  Hafner Publishing Company, New York  1962 
 - 434 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Paleobotany
<br/><br/><label>Dewey Class. No.: </label>561  SCO-S3.1