APA (7th ed.) Citation

Smithsonian Institution. (1992). Washington, D.C.: A Smithsonian book of the nation's capital. Smithsonian Books.

Chicago Style (17th ed.) Citation

Smithsonian Institution. Washington, D.C.: A Smithsonian Book of the Nation's Capital. Washington, D.C.: Smithsonian Books, 1992.

MLA (9th ed.) Citation

Smithsonian Institution. Washington, D.C.: A Smithsonian Book of the Nation's Capital. Smithsonian Books, 1992.