Cita APA (7a ed.)

Mac Kenna, M. (1940). Espion double: (Double spy). Librairie des Champs-Elysées.

Cita Chicago Style (17a ed.)

Mac Kenna, Marthe. Espion Double: (Double Spy). Paris: Librairie des Champs-Elysées, 1940.

Cita MLA (9a ed.)

Mac Kenna, Marthe. Espion Double: (Double Spy). Librairie des Champs-Elysées, 1940.