Christman, M. C. S. (1978). Fifty American faces from the collection of the National Portrait Gallery. Published for the National Portrait Gallery by the Smithsonian Institution Press : for sale by the Supt. of Docs., U.S. Govt. Print. Off..
Cita Chicago (17th ed.)Christman, Margaret C. S. Fifty American Faces from the Collection of the National Portrait Gallery. 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.
Cita MLA (8th ed.)Christman, Margaret C. S. Fifty American Faces from the Collection of the National Portrait Gallery. Published for the National Portrait Gallery by the Smithsonian Institution Press : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1978.