APA (7th ed.) Citation

Hawksworth, D. L., & Hill, D. J. (1984). The lichen-forming fungi. Blackie.

Chicago Style (17th ed.) Citation

Hawksworth, David L., and David Jayne Hill. The Lichen-forming Fungi. Glasgow [u.a.]: Blackie, 1984.

MLA (9th ed.) Citation

Hawksworth, David L., and David Jayne Hill. The Lichen-forming Fungi. Blackie, 1984.