Cita APA (7a ed.)

Newland, D. E., Still, R., Swash, A., & Tomlinson, D. (2020). Britain's butterflies: A field guide to the butterflies of Britain and Ireland (Fourth edition, fully revised and updated.). Princeton University Press.

Cita Chicago Style (17a ed.)

Newland, D. E., Rob Still, Andy Swash, y David Tomlinson. Britain's Butterflies: A Field Guide to the Butterflies of Britain and Ireland. Fourth edition, fully revised and updated. Princeton, New Jersey: Princeton University Press, 2020.

Cita MLA (8a ed.)

Newland, D. E., et al. Britain's Butterflies: A Field Guide to the Butterflies of Britain and Ireland. Fourth edition, fully revised and updated. Princeton University Press, 2020.