Price, C. (2010). The Kogod Courtyard: National Portrait Gallery and Smithsonian American Art Museum, Washington, DC. Topos.
Chicago-Zitierstil (17. Ausg.)Price, Constance. "The Kogod Courtyard: National Portrait Gallery and Smithsonian American Art Museum, Washington, DC." Topos 2010.
MLA-Zitierstil (8. Ausg.)Price, Constance. "The Kogod Courtyard: National Portrait Gallery and Smithsonian American Art Museum, Washington, DC." Topos, 2010.
警告：這些引文格式不一定是100％准確.