How to know the lichens
By: Mason E. Hale.
Edition: 2d ed.
Series: The Pictured key nature series
Publisher: W. C. Brown Co.
Published: 1979
Place of publication: Dubuque, Iowa
Language: eng
Number of pages: 246
Subjects: Lichens -- United States -- Identification; Lichens -- North America -- Identification
Notes: Bibliography: p. 22-24.
Includes index.