Hale, Mason E. <br/><br/>
Lichen handbook :  a guide to the lichens of eastern North America. 

 - Washington, DC :  Smithsonian Institution,  [1964] 
 - Smithsonian Institution. Publication ;  4434 .
 - Publication (Smithsonian Institution) ;  4434 .
<br/><br/> First published in 1961. 
<br/><br/>Bibliography : p. 163-170. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lichens -- United States.--Lichens -- United States.