Showell, Jak P. Mallmann <br/><br/>
Lichens / 
J. P. Showell. 
 - Second edition 
 - 26 pages :  illustrations ;  25 cm 
 - Publications (School Natural Science Society) ;  no. 38. .
 - Publications (School Natural Science Society) ;  no. 38. .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0856391387  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lichens--Identification--Great Britain--Handbooks, manuals, etc.
<br/><br/><label>Dewey Class. No.: </label>579.7