Cita APA (7a ed.)

Richards, J. D. (2005). The Vikings: A very short introduction. Oxford University Press.

Cita Chicago Style (17a ed.)

Richards, J. D. The Vikings: A Very Short Introduction. Oxford ; New York: Oxford University Press, 2005.

Cita MLA (9a ed.)

Richards, J. D. The Vikings: A Very Short Introduction. Oxford University Press, 2005.