APA (7e ed.) Bronvermelding

Não informado. (1895). Circular of the Astronomical Observatory of Harvard College. Harvard College, Astronomical Observatory.

Chicago (17e ed.) Bronvermelding

Não informado. Circular of the Astronomical Observatory of Harvard College. Cambridge, Mass: Harvard College, Astronomical Observatory, 1895.

MLA (8e ed.) Bronvermelding

Não informado. Circular of the Astronomical Observatory of Harvard College. Harvard College, Astronomical Observatory, 1895.

Let op: Deze citaties zijn niet altijd 100% accuraat.