APA (7th ed.) Citation

Hale, M. E. (1961). Lichen handbook: A guide to the Lichens of Eastern North America. Smithsonian Institution Press.

Chicago Style (17th ed.) Citation

Hale, Mason E. Lichen Handbook: A Guide to the Lichens of Eastern North America. Washington, D.C: Smithsonian Institution Press, 1961.

MLA (9th ed.) Citation

Hale, Mason E. Lichen Handbook: A Guide to the Lichens of Eastern North America. Smithsonian Institution Press, 1961.