Enid Blyton. (1951). The Mystery of the Vanished Prince. Egmont.
Cita Chicago (17th ed.)Enid Blyton. The Mystery of the Vanished Prince. Great Britain: Egmont, 1951.
Cita MLA (9th ed.)Enid Blyton. The Mystery of the Vanished Prince. Egmont, 1951.
Atenció: Aquestes cites poden no estar 100% correctes.