Cita APA (7a ed.)

Hallack, C. (1947). Adventure of te amethyst. Macmillan & Co.

Cita Chicago Style (17a ed.)

Hallack, Cecily. Adventure of Te Amethyst. London: Macmillan & Co, 1947.

Cita MLA (9a ed.)

Hallack, Cecily. Adventure of Te Amethyst. Macmillan & Co, 1947.