APA (7th ed.) Citation

Elix, J. A., Johnston, J., & Armstrong, P. M. (1986). A revision of the lichen genus Xanthoparmelia in Australasia. British Museum (Natural History).

Chicago Style (17th ed.) Citation

Elix, J. A., Jen Johnston, and Patricia M. Armstrong. A Revision of the Lichen Genus Xanthoparmelia in Australasia. London: British Museum (Natural History), 1986.

MLA (9th ed.) Citation

Elix, J. A., et al. A Revision of the Lichen Genus Xanthoparmelia in Australasia. British Museum (Natural History), 1986.