APA (7th ed.) Citation

Christie, A. (1926). The murder of Roger Ackroyd ([1. ed.].). Collins.

Chicago Style (17th ed.) Citation

Christie, Agatha. The Murder of Roger Ackroyd. [1. ed.]. London [u.a.]: Collins, 1926.

MLA (9th ed.) Citation

Christie, Agatha. The Murder of Roger Ackroyd. [1. ed.]. Collins, 1926.