APA (7th ed.) Citation

Leonard, J. N. (1969). The world of Gainsborough, 1727-1788. Time-Life Books.

Chicago Style (17th ed.) Citation

Leonard, Jonathan Norton. The World of Gainsborough, 1727-1788. New York: Time-Life Books, 1969.

MLA (9th ed.) Citation

Leonard, Jonathan Norton. The World of Gainsborough, 1727-1788. Time-Life Books, 1969.