APA (7th ed.) Citation

Christie, A. (1949). Peril at End House. Penguin.

Chicago Style (17th ed.) Citation

Christie, Agatha. Peril at End House. London: Penguin, 1949.

MLA (9th ed.) Citation

Christie, Agatha. Peril at End House. Penguin, 1949.

Warning: These citations may not always be 100% accurate.