(1993). Oxford illustrated encyclopedia: Vol.8 - The universe. New York: Oxford Univ. Press.
Trích dẫn kiểu ChicagoOxford Illustrated Encyclopedia: Vol.8 - The Universe. New York: Oxford Univ. Press, 1993.
MLA citiranjeOxford Illustrated Encyclopedia: Vol.8 - The Universe. New York: Oxford Univ. Press, 1993.
Opozorilo: Ti citati niso vedno 100% točni.