Cita APA (7th ed.)

Grimshaw, N. (1970). The angry valley. Longman.

Cita Chicago (17th ed.)

Grimshaw, Nigel. The Angry Valley. London: Longman, 1970.

Cita MLA (9th ed.)

Grimshaw, Nigel. The Angry Valley. Longman, 1970.

Atenció: Aquestes cites poden no estar 100% correctes.