APA (7th ed.) Citation

Christie, A. (2005). The A.B.C. murders (1st edition.). Berkeley Books.

Chicago Style (17th ed.) Citation

Christie, Agatha. The A.B.C. Murders. 1st edition. New York: Berkeley Books, 2005.

MLA (9th ed.) Citation

Christie, Agatha. The A.B.C. Murders. 1st edition. Berkeley Books, 2005.