Cita APA (7a ed.)

BLYTON, E. (1999). PUZZLE FOR THE SECRET SEVEN: 10.

Cita Chicago Style (17a ed.)

BLYTON, ENID. PUZZLE FOR THE SECRET SEVEN: 10. 1999.

Cita MLA (9a ed.)

BLYTON, ENID. PUZZLE FOR THE SECRET SEVEN: 10. 1999.