Não informado. (2000). Transactions of the Astronomical Observatory of Yale University. Yale University, Astronomical Observatory.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Transactions of the Astronomical Observatory of Yale University. New Haven, Conn: Yale University, Astronomical Observatory, 2000.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Transactions of the Astronomical Observatory of Yale University. Yale University, Astronomical Observatory, 2000.
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