APA (7th ed.) Citation

Oxford Reference Online & Stearns, P. N. (2008). The Oxford encyclopedia of the modern world. Oxford University Press.

Chicago Style (17th ed.) Citation

Oxford Reference Online and Peter N. Stearns. The Oxford Encyclopedia of the Modern World. Oxford: Oxford University Press, 2008.

MLA (9th ed.) Citation

Oxford Reference Online and Peter N. Stearns. The Oxford Encyclopedia of the Modern World. Oxford University Press, 2008.