APA (7th ed.) Citation

United States. Bureau of Mines. (1922). Compressed-air blowers as aid to metal-mine ventilation. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Bureau of Mines. Compressed-air Blowers as Aid to Metal-mine Ventilation. [Washington]: [publisher not identified], 1922.

MLA (9th ed.) Citation

United States. Bureau of Mines. Compressed-air Blowers as Aid to Metal-mine Ventilation. [publisher not identified], 1922.

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