APA (7th ed.) Citation

Hale, M. E. (1981). A revision of the lichen family Thelotremataceae in Sri Lanka. British Museum (Natural History).

Chicago Style (17th ed.) Citation

Hale, Mason E. A Revision of the Lichen Family Thelotremataceae in Sri Lanka. London: British Museum (Natural History), 1981.

MLA (9th ed.) Citation

Hale, Mason E. A Revision of the Lichen Family Thelotremataceae in Sri Lanka. British Museum (Natural History), 1981.