Checklist of the permanent collection.

National Portrait Gallery (Smithsonian Institution)
Washington : Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1973.
2d ed.

National Portrait Gallery Smithsonian Institution : permanent collection, illustrated checklist

National Portrait Gallery (Smithsonian Institution)
Washington : Published for the National Portrait Gallery by the Smithsonian Institution Press : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1978.

National Portrait Gallery, Smithsonian Institution : permanent collection illustrated checklist

National Portrait Gallery (Smithsonian Institution)
Washington : Published for the National Portrait Gallery by the Smithsonian Institution Press : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1980.

Permanent collection illustrated checklist

National Portrait Gallery (Smithsonian Institution)
Washington : Published for the National Portrait Gallery by the Smithsonian Institution Press, 1982.
1982 ed.