Não informado. (1960). Quarterly Journal of the Royal Astronomical Society. Blackwell Scientific Publications.
Chicago (17e ed.) BronvermeldingNão informado. Quarterly Journal of the Royal Astronomical Society. London: Blackwell Scientific Publications, 1960.
MLA (8e ed.) BronvermeldingNão informado. Quarterly Journal of the Royal Astronomical Society. Blackwell Scientific Publications, 1960.
Let op: Deze citaties zijn niet altijd 100% accuraat.