Warhol, Andy. Blue Marilyn. 1962, Princeton University Art Museum, Princeton, N.J. Princeton University Art Museum, http://artmuseum.princeton. edu/collections/objects/ 31653.
Warhol, Andy. Marilyn Monroe. 1967, Harvard Art Museums, Boston, Massachusetts. Harvard Art Museums, http://www.harvardart museums.org/ collections/object/353340.
Warhol, Andy. Turquoise Marilyn. 1964, Women: an Exhibition of Paintings & Sculptures on Loan from the Steven & Alexandra Cohen Collection. Sotheby's, New York, N.Y., April 2-April 14, 2009. Art Observed, http://artobserved.com/ 2009/03/steven-cohen-newly-an-investor-in-sothebys-is-to-display-420-million-worth-of-art-the-auction-house-in-an-exhibition-to-be-based-on-women/.