APA (7th ed.) Citation

Christie, A. (1973). The Murder of Roger Ackroyd. Pocket Books.

Chicago Style (17th ed.) Citation

Christie, Agatha. The Murder of Roger Ackroyd. New York: Pocket Books, 1973.

MLA (9th ed.) Citation

Christie, Agatha. The Murder of Roger Ackroyd. Pocket Books, 1973.

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