Cita APA (7a ed.)

Blyton, E. (1942). The O'Sullivan Twins At St. Clare's (75th.). Hodder Children's Books.

Cita Chicago Style (17a ed.)

Blyton, Enid. The O'Sullivan Twins At St. Clare's. 75th. London: Hodder Children's Books, 1942.

Cita MLA (9a ed.)

Blyton, Enid. The O'Sullivan Twins At St. Clare's. 75th. Hodder Children's Books, 1942.