APA (7th ed.) Citation

Christie, A. (1986). Three act tragedy: A Hercule Poirot Mystery. Dodd, Mead.

Chicago Style (17th ed.) Citation

Christie, Agatha. Three Act Tragedy: A Hercule Poirot Mystery. New York: Dodd, Mead, 1986.

MLA (8th ed.) Citation

Christie, Agatha. Three Act Tragedy: A Hercule Poirot Mystery. Dodd, Mead, 1986.

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