APA (7th ed.) Citation

Osborne, H. (1981). The Oxford Companion to Twentieth-Century Art. Oxford University Press.

Chicago Style (17th ed.) Citation

Osborne, Harold. The Oxford Companion to Twentieth-Century Art. Oxford, New York: Oxford University Press, 1981.

MLA (9th ed.) Citation

Osborne, Harold. The Oxford Companion to Twentieth-Century Art. Oxford University Press, 1981.