Não informado. (2000). Transactions of the Astronomical Observatory of Yale University. Yale University, Astronomical Observatory.
Chicago-referens (17:e uppl.)Não informado. Transactions of the Astronomical Observatory of Yale University. New Haven, Conn: Yale University, Astronomical Observatory, 2000.
MLA-referens (8:e uppl.)Não informado. Transactions of the Astronomical Observatory of Yale University. Yale University, Astronomical Observatory, 2000.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.