APA (7th ed.) Citation

Smithsonian Institution & Godbout, J. A. (1976). Official guide to the Smithsonian (Revised ed.). CBS Inc.

Chicago Style (17th ed.) Citation

Smithsonian Institution and James A. Godbout. Official Guide to the Smithsonian. Revised ed. [s. l.]: CBS Inc, 1976.

MLA (9th ed.) Citation

Smithsonian Institution and James A. Godbout. Official Guide to the Smithsonian. Revised ed. CBS Inc, 1976.