APA (7th ed.) Zitazioa

Prebble, L., & Harding, L. (2019). A very expensive poison. Methuen Drama/Bloomsbury Publishing Plc.

Chicago Style (17th ed.) Zitazioa

Prebble, Lucy, eta Luke Harding. A Very Expensive Poison. London, UK: Methuen Drama/Bloomsbury Publishing Plc, 2019.

MLA (9th ed.) Zitazioa

Prebble, Lucy, eta Luke Harding. A Very Expensive Poison. Methuen Drama/Bloomsbury Publishing Plc, 2019.