Consolmagno, G., & Davis, D. M. (2011). Turn left at Orion: Hundreds of night sky objects to see in a home telescope-- and how to find them (4th ed.). Cambridge University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रConsolmagno, Guy, और Dan M. Davis. Turn Left at Orion: Hundreds of Night Sky Objects to See in a Home Telescope-- and How to Find Them. 4th ed. Cambridge ; New York: Cambridge University Press, 2011.
एमएलए (8वां संस्करण) प्रशस्ति पत्रConsolmagno, Guy, और Dan M. Davis. Turn Left at Orion: Hundreds of Night Sky Objects to See in a Home Telescope-- and How to Find Them. 4th ed. Cambridge University Press, 2011.
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