Darrah,William C. <br/><br/>
Principles of paleobotany. 2.ed. 

 - 2.ed. 
 - New York - EEUU  Ronald Press  1960 
 - 295p.  24cm 
 -   .
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label>--Paleobotanica--Paleontologia--Fosiles--Plantas fosiles--<br/>Geologia