Image (photograph or painting) found on a website
Liebowitz, Annie. Monument Valley. 1993. Brooklyn Museum, www.brooklynmuseum.org/exhibitions/annie_leibovitz.
Image (photograph or painting) found in a book
Chagall, Marc. The Fiddler. 1912. Stedelijk Museum, Amsterdam. Marc Chagall, edited by Werner Haftmann, Harry N. Abrams, Inc., 1972, Colorplate 12.
Original work of visual art
Rembrandt Harmensz van Rijn. Aristotle with a Bust of Homer. 1653, oil on canvas. Metropolitan Museum of Art, New York.
Note: When you cite the original work of art and not a reproduction, you include the material (ie: oil on canvas).
