E. Sachse & Co, National Portrait Gallery (Smithsonian Institution), & Smithsonian American Art Museum. (2007). Washington: Patent Office. [Smithsonian Institution].
Chicago Style (17th ed.) CitationE. Sachse & Co, National Portrait Gallery (Smithsonian Institution), and Smithsonian American Art Museum. Washington: Patent Office. [Washington, D.C.]: [Smithsonian Institution], 2007.
MLA (9th ed.) CitationE. Sachse & Co, et al. Washington: Patent Office. [Smithsonian Institution], 2007.
Warning: These citations may not always be 100% accurate.