APA (7th ed.) Citation

(1970). The formation of the Union. The National Archives of the United States.

Chicago Style (17th ed.) Citation

The Formation of the Union. Washington, D.C: The National Archives of the United States, 1970.

MLA (9th ed.) Citation

The Formation of the Union. The National Archives of the United States, 1970.

Warning: These citations may not always be 100% accurate.