Cita APA (7a ed.)

Dunn, J., Harrop, H., & Still, R. (2014). Britain's Sea Mammals: Whales, Dolphins, Porpoises, and Seals and Where to Find Them. Princeton University Press.

Cita Chicago Style (17a ed.)

Dunn, Jon, Hugh Harrop, y Robert Still. Britain's Sea Mammals: Whales, Dolphins, Porpoises, and Seals and Where to Find Them. Princeton: Princeton University Press, 2014.

Cita MLA (8a ed.)

Dunn, Jon, et al. Britain's Sea Mammals: Whales, Dolphins, Porpoises, and Seals and Where to Find Them. Princeton University Press, 2014.