Grounds, Roger <br/><br/>
Ferns / 
Roger Grounds 
 - London :  Pelham Books,  1974 
 - 264 p. :  ill. ;  23 cm. 
<br/><br/> Includes index 
<br/><br/>Bibliography: p. 253-254 
<br/><br/><label>ISBN: </label>0720706874 
<br/><br/><label>LCCN: </label>75-312419 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ferns<br/>Ferns--Identification<br/>Ferns--Varieties