Cita APA (7a ed.)

Schonfield, H. J. (1939). The Suez canal. Penguin.

Cita Chicago Style (17a ed.)

Schonfield, Hugh Joseph. The Suez Canal. Harmondsworth: Penguin, 1939.

Cita MLA (9a ed.)

Schonfield, Hugh Joseph. The Suez Canal. Penguin, 1939.