APA (7th ed.) Citation

Hale, M. E. (1979). How to know the lichens (2nd ed.). WCB/McGraw-Hill.

Chicago Style (17th ed.) Citation

Hale, Mason E. How to Know the Lichens. 2nd ed. Boston: WCB/McGraw-Hill, 1979.

MLA (8th ed.) Citation

Hale, Mason E. How to Know the Lichens. 2nd ed. WCB/McGraw-Hill, 1979.