Cita APA (7a ed.)

Enid Blyton. (2018). The Secret Seven, Mystery of the Skull (2018.). Hodder Children's book.

Cita Chicago Style (17a ed.)

Enid Blyton. The Secret Seven, Mystery of the Skull. 2018. Hodder Children's book, 2018.

Cita MLA (9a ed.)

Enid Blyton. The Secret Seven, Mystery of the Skull. 2018. Hodder Children's book, 2018.