Cita APA (7th ed.)

Foreign Policy Association. (1925). Information service. The Association.

Cita Chicago (17th ed.)

Foreign Policy Association. Information Service. New York, N.Y: The Association, 1925.

Cita MLA (9th ed.)

Foreign Policy Association. Information Service. The Association, 1925.

Atenció: Aquestes cites poden no estar 100% correctes.