Dick, S. J. (2003). Sky and ocean joined: The U.S. Naval Observatory, 1830-2000. New York: Cambridge University Press.
Chicago Style CitationDick, Steven J. Sky and Ocean Joined: The U.S. Naval Observatory, 1830-2000. New York: Cambridge University Press, 2003.
Cita MLADick, Steven J. Sky and Ocean Joined: The U.S. Naval Observatory, 1830-2000. New York: Cambridge University Press, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.