Não informado. (2004). Publications of the National Astronomical Observatory of Japan. National Astronomical Observatory of Japan.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Publications of the National Astronomical Observatory of Japan. Mitaka, Japão: National Astronomical Observatory of Japan, 2004.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Publications of the National Astronomical Observatory of Japan. National Astronomical Observatory of Japan, 2004.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.