APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Hale, Mason E. Lichen Handbook: A Guide to the Lichens of Eastern North America. Washington, DC: Smithsonian Inst, 1961.

MLA (9th ed.) Citation

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

Warning: These citations may not always be 100% accurate.