The lichens / 
edited by Vernon Ahmadjian, Mason E. Hale. 
 - New York :  Academic Press,  1973. 
 - xiv, 697 p.  ill. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>ISBN: </label>0120449501 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lichens.