Cita APA (7a ed.)

Barley, N. (1988). Not a hazardous sport. Penguin Books.

Cita Chicago Style (17a ed.)

Barley, Nigel. Not a Hazardous Sport. London: Penguin Books, 1988.

Cita MLA (9a ed.)

Barley, Nigel. Not a Hazardous Sport. Penguin Books, 1988.