APA (7th ed.) Citation

Ruskin, J., & Barrie, D. (1987). Modern painters. Knopf.

Chicago Style (17th ed.) Citation

Ruskin, John, and David Barrie. Modern Painters. New York: Knopf, 1987.

MLA (9th ed.) Citation

Ruskin, John, and David Barrie. Modern Painters. Knopf, 1987.