APA (7th ed.) Citation

Christie, A. (1977). A Poirot quintet. Collins.

Chicago Style (17th ed.) Citation

Christie, Agatha. A Poirot Quintet. London: Collins, 1977.

MLA (8th ed.) Citation

Christie, Agatha. A Poirot Quintet. Collins, 1977.

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