Page, T., & Page, L. W. (1965). Wanderers in the sky: The motion of planets and space probes. Macmillan.
Dyfyniad Arddull ChicagoPage, Thornton, and Lou Williams Page. Wanderers in the Sky: The Motion of Planets and Space Probes. New York: Macmillan, 1965.
Dyfyniad MLAPage, Thornton, and Lou Williams Page. Wanderers in the Sky: The Motion of Planets and Space Probes. Macmillan, 1965.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.