APA (7th ed.) Citation

United States. Department of the Interior. (1921). Reward for discovery, amendment of Circular 672. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Department of the Interior. Reward for Discovery, Amendment of Circular 672. [Washington]: [publisher not identified], 1921.

MLA (9th ed.) Citation

United States. Department of the Interior. Reward for Discovery, Amendment of Circular 672. [publisher not identified], 1921.

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