APA (7th ed.) Citation

Christie, A. (2011). The A.B.C. murders (First Harper paperback.). William Morrow, an imprint of HarperCollings Publishers.

Chicago Style (17th ed.) Citation

Christie, Agatha. The A.B.C. Murders. First Harper paperback. New York: William Morrow, an imprint of HarperCollings Publishers, 2011.

MLA (8th ed.) Citation

Christie, Agatha. The A.B.C. Murders. First Harper paperback. William Morrow, an imprint of HarperCollings Publishers, 2011.

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