Cita APA (7th ed.)
Kruuk, H. (2006). Otters: Ecology, behaviour, and conservation. Oxford University Press.
Cita Chicago (17th ed.)
Kruuk, H. Otters: Ecology, Behaviour, and Conservation. Oxford ; New York: Oxford University Press, 2006.
Cita MLA (9th ed.)
Kruuk, H. Otters: Ecology, Behaviour, and Conservation. Oxford University Press, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.