APA (7th ed.) Citation

Christie, A. (1953). The Murder of Roger Ackroyd (Repr.). Penguin.

Chicago Style (17th ed.) Citation

Christie, Agatha. The Murder of Roger Ackroyd. Repr. London: Penguin, 1953.

MLA (9th ed.) Citation

Christie, Agatha. The Murder of Roger Ackroyd. Repr. Penguin, 1953.

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