Citazione Stile APA (7a Edizione)

Agatha, C. (1972). Elephants can remember: Hercule poirot novel. Berkley books.

Citazione stile Chigago Style (17a edizione)

Agatha, Christie. Elephants Can Remember: Hercule Poirot Novel. New York: Berkley books, 1972.

Citatione MLA (9a ed.)

Agatha, Christie. Elephants Can Remember: Hercule Poirot Novel. Berkley books, 1972.