APA (7th ed.) Citation

United States. Bureau of Mines. (1921). Inspection and assembly of flame safety lamps at mine. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Bureau of Mines. Inspection and Assembly of Flame Safety Lamps at Mine. [Washington]: [publisher not identified], 1921.

MLA (9th ed.) Citation

United States. Bureau of Mines. Inspection and Assembly of Flame Safety Lamps at Mine. [publisher not identified], 1921.

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