Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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