Cita APA (7th ed.)

(1978). V. 26, № 7. 1978.

Cita Chicago (17th ed.)

V. 26, № 7. 1978, 1978.

Cita MLA (9th ed.)

V. 26, № 7. 1978, 1978.

Atenció: Aquestes cites poden no estar 100% correctes.