Oyen, H. (1919). Big flat. Hodder & Stoughton.
Cita Chicago (17th ed.)Oyen, Henry. Big Flat. London: Hodder & Stoughton, 1919.
Cita MLA (8th ed.)Oyen, Henry. Big Flat. Hodder & Stoughton, 1919.
Atenció: Aquestes cites poden no estar 100% correctes.