APA (7th ed.) Citation

Christie, A. (1968). At Bertram's Hotel. Collins ; Fontana.

Chicago Style (17th ed.) Citation

Christie, Agatha. At Bertram's Hotel. [London]: Collins ; Fontana, 1968.

MLA (8th ed.) Citation

Christie, Agatha. At Bertram's Hotel. Collins ; Fontana, 1968.

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