Pekarik, Andrew J., Doering, Zahava D., and Bickford, Adam. 1999. "Canvasses off the Mall: Studies Conducted at the National Museum of American Art, National Portrait Gallery and Renwick Gallery." Washington, DC: Smithsonian Institution, Office of Policy and Analysis.

Smithsonian Institution, Office of Policy and Analysis report entitled Canvases off the Mall: Studies Conducted at the National Museum of American Art, National Portrait Gallery and Renwick Gallery, published November, 1999.