APA (7th ed.) Citation

Smithsonian Institution & ProQuest (Firm). (1876). Letters of Professors Henry and Baird accompanying the annual message of the President of the United States. [publisher not identified].

Chicago Style (17th ed.) Citation

Smithsonian Institution and ProQuest (Firm). Letters of Professors Henry and Baird Accompanying the Annual Message of the President of the United States. Washington: [publisher not identified], 1876.

MLA (9th ed.) Citation

Smithsonian Institution and ProQuest (Firm). Letters of Professors Henry and Baird Accompanying the Annual Message of the President of the United States. [publisher not identified], 1876.