The phylogency and classification of the ferns / 
edited by A. C. Jermy, J. A. Crabbe [and] B. A. Thomas 
 - London :  Academic Press,  1973 
 - xiv, 284 p. ;  26 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0123850509 :  ND 9.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ferns--Classification
<br/><br/><label>Dewey Class. No.: </label>587.31