Verdoorn, Frans,  1906- <br/><br/>
Manual of pteridology, 
edited by Fr. Verdoorn in collaboration with A.H.G. Alston, I. Andersson-Kottö, L.R. Atkinson [and others] Foreword by F.O. Bower. With 121 illustrations. 
 - The Hague,  M. Nijhoff,  1938. 
 - 1 p.l., [vii]-xx, 640 p.  front., illus. (incl. maps) diagrs.  25 cm. 
<br/><br/> Some of the articles are in German. 
<br/><br/>Contains bibliographies. 
<br/><br/><label>LCCN: </label>agr39000156 //r87 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ferns.
<br/><br/><label>LC Class. No.: </label>QK523  / .V47