Christie, A. (1932). Peril at end house. Harper Collins, London.
Cita Chicago (17th ed.)Christie, Agatha. Peril at End House. Harper Collins, London, 1932.
Cita MLA (9th ed.)Christie, Agatha. Peril at End House. Harper Collins, London, 1932.
Atenció: Aquestes cites poden no estar 100% correctes.