Smart, W. M. (1962). Text-book on Spherical Astronomy (5th ed.). Cambridge University Press.
Cita Chicago (17th ed.)Smart, W. M. Text-book on Spherical Astronomy. 5th ed. Cambridge: Cambridge University Press, 1962.
Cita MLA (9th ed.)Smart, W. M. Text-book on Spherical Astronomy. 5th ed. Cambridge University Press, 1962.
Atenció: Aquestes cites poden no estar 100% correctes.