Cita APA (7th ed.)

Bill, G., & Snow, A. (2001). Dirty dog. Cambridge University Press.

Cita Chicago (17th ed.)

Bill, Gillham, i Alan Snow. Dirty Dog. Cambridge: Cambridge University Press, 2001.

Cita MLA (8th ed.)

Bill, Gillham, i Alan Snow. Dirty Dog. Cambridge University Press, 2001.