Dick, S. J. (2003). Sky and ocean joined: The U.S. Naval Observatory, 1830-2000. New York: Cambridge University Press.
शिकागो स्टाइल उद्धरणDick, Steven J. Sky and Ocean Joined: The U.S. Naval Observatory, 1830-2000. New York: Cambridge University Press, 2003.
एमएलए उद्धरणDick, Steven J. Sky and Ocean Joined: The U.S. Naval Observatory, 1830-2000. New York: Cambridge University Press, 2003.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.