APA (7th ed.) Citation

Purvis, W. (2000). Lichens. Smithsonian Institution Press in association with the Natural History Museum, London.

Chicago Style (17th ed.) Citation

Purvis, William. Lichens. Washington, D.C.: Smithsonian Institution Press in association with the Natural History Museum, London, 2000.

MLA (9th ed.) Citation

Purvis, William. Lichens. Smithsonian Institution Press in association with the Natural History Museum, London, 2000.