Não informado. (1969). Celestial Mechanics: An international journal of space dynamics. Reidel Publishing.
Chicago (17e ed.) BronvermeldingNão informado. Celestial Mechanics: An International Journal of Space Dynamics. Dordrecht, Holanda: Reidel Publishing, 1969.
MLA (8e ed.) BronvermeldingNão informado. Celestial Mechanics: An International Journal of Space Dynamics. Reidel Publishing, 1969.
Let op: Deze citaties zijn niet altijd 100% accuraat.