1. Bloomfield, Jem. ‘“Three Ordinary, Normal Old Women”: Agatha Christie’s Uses of Shakespeare’. Shakespeare 16.1 (2020): 23–39.
2. Christie, Agatha. 4.50 from Paddington [1957]. London: HarperCollins, 2002a.
3. ———. The ABC Murders [1936]. London: HarperCollins, 2007a.
4. ———. After the Funeral [1953]. London: HarperCollins, 2001a.
5. ———. And Then There Were None [1939]. London: HarperCollins, 2007b.