Cita APA (7th ed.)

Hornby, N. (2006). A long way down. Penguin Books.

Cita Chicago (17th ed.)

Hornby, Nick. A Long Way Down. New York, New York: Penguin Books, 2006.

Cita MLA (9th ed.)

Hornby, Nick. A Long Way Down. Penguin Books, 2006.