Cita APA

Hale, M. E. (1961). Lichen handbook: A guide to the lichens of eastern North America. Washington, D.C.: Smithsonian Institution.

Citación estilo Chicago

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

Cita MLA

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