APA (7th ed.) Citation

United States. Bureau of Mines. (1925). Calcium-sulphate retarders for Portland cement. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Bureau of Mines. Calcium-sulphate Retarders for Portland Cement. [Washington]: [publisher not identified], 1925.

MLA (9th ed.) Citation

United States. Bureau of Mines. Calcium-sulphate Retarders for Portland Cement. [publisher not identified], 1925.

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