APA (7th ed.) Citation

Ridpath, I. (2003). Oxford dictionary of astronomy (Rev. ed.). Oxford University Press.

Chicago Style (17th ed.) Citation

Ridpath, Ian. Oxford Dictionary of Astronomy. Rev. ed. New York: Oxford University Press, 2003.

MLA (9th ed.) Citation

Ridpath, Ian. Oxford Dictionary of Astronomy. Rev. ed. Oxford University Press, 2003.