APA (7th ed.) Zitazioa

(1985). The New York times guide to the return of Halley's comet. Times.

Chicago Style (17th ed.) Zitazioa

The New York Times Guide to the Return of Halley's Comet. New York: Times, 1985.

MLA (9th ed.) Zitazioa

The New York Times Guide to the Return of Halley's Comet. Times, 1985.