APA (7th ed.) Citation

Christie, A. (2017). Murder on the orient express. Harper collins publishers.

Chicago Style (17th ed.) Citation

Christie, Agatha. Murder on the Orient Express. London: Harper collins publishers, 2017.

MLA (9th ed.) Citation

Christie, Agatha. Murder on the Orient Express. Harper collins publishers, 2017.

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