Cita APA (7a ed.)

Still, R., Días, L., Stenton, T., & Harrop, H. (2019). Europe's Sea Mammals Including the Azores, Madeira, the Canary Islands and Cape Verde: A field guide to the whales, dolphins, porpoises and seals. Princeton University Press.

Cita Chicago Style (17a ed.)

Still, Rob, Luis Días, Tim Stenton, y Hugh Harrop. Europe's Sea Mammals Including the Azores, Madeira, the Canary Islands and Cape Verde: A Field Guide to the Whales, Dolphins, Porpoises and Seals. Princeton, New Jersey: Princeton University Press, 2019.

Cita MLA (8a ed.)

Still, Rob, et al. Europe's Sea Mammals Including the Azores, Madeira, the Canary Islands and Cape Verde: A Field Guide to the Whales, Dolphins, Porpoises and Seals. Princeton University Press, 2019.