APA (7th ed.) Citation

Camus, J. M., & Jermy, A. C. (1991). A world of ferns. Natural History Museum.

Chicago Style (17th ed.) Citation

Camus, Josephine M., and A. Clive Jermy. A World of Ferns. London: Natural History Museum, 1991.

MLA (9th ed.) Citation

Camus, Josephine M., and A. Clive Jermy. A World of Ferns. Natural History Museum, 1991.

Warning: These citations may not always be 100% accurate.