Verdoorn F <br/><br/>
Manual of peteridology 

 - Hague  Martinus           1938 
 - xx,640p.  cm. 
<br/><br/><label>Standard No.: </label>51132 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Pteridophyta<br/>Botany
<br/><br/><label>Dewey Class. No.: </label>I4, G8