Cita APA (7a ed.)

Freeling, N. (1975). A Long Silence. Penguin Books.

Cita Chicago Style (17a ed.)

Freeling, Nicolas. A Long Silence. [Middlesex]: Penguin Books, 1975.

Cita MLA (9a ed.)

Freeling, Nicolas. A Long Silence. Penguin Books, 1975.