APA-referens (7:e uppl.)
Dunn, J., Still, R., & Harrop, H. (2012). Britain's sea mammals: Whales, dolphins, porpoises and seals, and where to find them. Princeton University Press.
Chicago-referens (17:e uppl.)
Dunn, Jon, Rob Still, och Hugh Harrop. Britain's Sea Mammals: Whales, Dolphins, Porpoises and Seals, and Where to Find Them. Princeton, New Jersey: Princeton University Press, 2012.
MLA-referens (9:e uppl.)
Dunn, Jon, et al. Britain's Sea Mammals: Whales, Dolphins, Porpoises and Seals, and Where to Find Them. Princeton University Press, 2012.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.