APA (7th ed.) Citation

United States. Department of Commerce. (1920). Safe use of alternating-current type of coal-cutting equipment. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Department of Commerce. Safe Use of Alternating-current Type of Coal-cutting Equipment. [Washington]: [publisher not identified], 1920.

MLA (9th ed.) Citation

United States. Department of Commerce. Safe Use of Alternating-current Type of Coal-cutting Equipment. [publisher not identified], 1920.

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