Oxford companion to twentieth-century art (the).

MLA

Osborne, H. Oxford Companion to Twentieth-century Art (the). Oxford: University press, 1981.

APA

Osborne, H. (1981). Oxford companion to twentieth-century art (the). Oxford: University press.

Chicago

Osborne, H. Oxford Companion to Twentieth-Century Art (the). Oxford: University press, 1981.