Richardson, T., & Stangos, N. (1974). Concepts of modern art ([1st U.S. ed.].). Harper & Row.
Chicago Style (17th ed.) CitationRichardson, Tony, and Nikos Stangos. Concepts of Modern Art. [1st U.S. ed.]. New York: Harper & Row, 1974.
MLA (9th ed.) CitationRichardson, Tony, and Nikos Stangos. Concepts of Modern Art. [1st U.S. ed.]. Harper & Row, 1974.
Warning: These citations may not always be 100% accurate.