APA (7th ed.) Citation

Fry, E., & Fry, A. (1911). The Liverworts: British and foreign. Witherby & co..

Chicago Style (17th ed.) Citation

Fry, Edward, and Agnes Fry. The Liverworts: British and Foreign. London: Witherby & co., 1911.

MLA (9th ed.) Citation

Fry, Edward, and Agnes Fry. The Liverworts: British and Foreign. Witherby & co., 1911.