Cita APA (7th ed.)

(1933). Bd. 16, № 5. 1933.

Cita Chicago (17th ed.)

Bd. 16, № 5. 1933, 1933.

Cita MLA (9th ed.)

Bd. 16, № 5. 1933, 1933.

Atenció: Aquestes cites poden no estar 100% correctes.