APA (7th ed.) Citation

United States. Bureau of Mines. (1931). Apparatus for determination of hydrogen sulphide in gases. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Bureau of Mines. Apparatus for Determination of Hydrogen Sulphide in Gases. [Washington]: [publisher not identified], 1931.

MLA (9th ed.) Citation

United States. Bureau of Mines. Apparatus for Determination of Hydrogen Sulphide in Gases. [publisher not identified], 1931.

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