Não informado. (2018). Publications of the Dominion Observatory. Dominion Astronomical Observatory.
Chicago (17e ed.) BronvermeldingNão informado. Publications of the Dominion Observatory. Ottawa: Dominion Astronomical Observatory, 2018.
MLA (8e ed.) BronvermeldingNão informado. Publications of the Dominion Observatory. Dominion Astronomical Observatory, 2018.
Let op: Deze citaties zijn niet altijd 100% accuraat.