APA (7th ed.) Citation

Christie, A. (1952). The sittaford mystery (Reprinted.). Penguin.

Chicago Style (17th ed.) Citation

Christie, Agatha. The Sittaford Mystery. Reprinted. Harmondsworth: Penguin, 1952.

MLA (9th ed.) Citation

Christie, Agatha. The Sittaford Mystery. Reprinted. Penguin, 1952.

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