(1985). The New York times guide to the return of Halley's comet. Times.
Citación estilo ChicagoThe New York Times Guide to the Return of Halley's Comet. New York: Times, 1985.
Cita MLAThe New York Times Guide to the Return of Halley's Comet. Times, 1985.
Warning: These citations may not always be 100% accurate.