Cita APA (7th ed.)
Britannica Society. Informateca cd. Encyclopaedia Britannica Publishers.
Cita Chicago (17th ed.)
Britannica Society. Informateca Cd. México: Encyclopaedia Britannica Publishers.
Cita MLA (9th ed.)
Britannica Society. Informateca Cd. Encyclopaedia Britannica Publishers.
Atenció: Aquestes cites poden no estar 100% correctes.