APA (7th ed.) Citation

Roy, A. E. (1992). Oxford illustrated encyclopedia of the universe. Oxford University Press.

Chicago Style (17th ed.) Citation

Roy, A. E. Oxford Illustrated Encyclopedia of the Universe. Oxford: Oxford University Press, 1992.

MLA (9th ed.) Citation

Roy, A. E. Oxford Illustrated Encyclopedia of the Universe. Oxford University Press, 1992.

Warning: These citations may not always be 100% accurate.