Cita APA (7th ed.)

MacLean, A. (1963). Fear is the key. Fontana ; Collins.

Cita Chicago (17th ed.)

MacLean, Alistair. Fear Is the Key. [London]: Fontana ; Collins, 1963.

Cita MLA (8th ed.)

MacLean, Alistair. Fear Is the Key. Fontana ; Collins, 1963.