APA (7th ed.) Citation

Christie, A. (1954). They came to Baghdad. Fontana books.

Chicago Style (17th ed.) Citation

Christie, Agatha. They Came to Baghdad. London: Fontana books, 1954.

MLA (9th ed.) Citation

Christie, Agatha. They Came to Baghdad. Fontana books, 1954.

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