Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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