Cita APA (7a ed.)

Cole, S., & Waller, M. (2020). Britain's Orchids: A Field Guide to the Orchids of Great Britain and Ireland. Princeton University Press.

Cita Chicago Style (17a ed.)

Cole, Sean, y Michael Waller. Britain's Orchids: A Field Guide to the Orchids of Great Britain and Ireland. Princeton: Princeton University Press, 2020.

Cita MLA (8a ed.)

Cole, Sean, y Michael Waller. Britain's Orchids: A Field Guide to the Orchids of Great Britain and Ireland. Princeton University Press, 2020.