APA (7th ed.) Citation

CHRISTIE, A. Hercule Poirot's Christmas. The Crime Club.

Chicago Style (17th ed.) Citation

CHRISTIE, Agatha. Hercule Poirot's Christmas. London: The Crime Club.

MLA (9th ed.) Citation

CHRISTIE, Agatha. Hercule Poirot's Christmas. The Crime Club.

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