Howard-White, F. B. (1963). Nickel: An historical review. Methuen.
Cita Chicago (17th ed.)Howard-White, F. B. Nickel: An Historical Review. London: Methuen, 1963.
Cita MLA (8th ed.)Howard-White, F. B. Nickel: An Historical Review. Methuen, 1963.
Atenció: Aquestes cites poden no estar 100% correctes.