Hale, Mason E. <br/><br/>
The biology of lichens / 
by Mason E. Hale 
 - 2d ed. 
 - New York :  American Elsevier Pub. Co.,  1974 
 - viii, 181 p. :  ill. ;  23 cm. 
<br/><br/> Includes index 
<br/><br/>Bibliography: p. 164-172 
<br/><br/><label>ISBN: </label>0444195319 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lichens