APA (7th ed.) Citation

United States. Bureau of Mines. (1929). Calcium sulphate retarders for Portland cement clinker. GPO.

Chicago Style (17th ed.) Citation

United States. Bureau of Mines. Calcium Sulphate Retarders for Portland Cement Clinker. [Washington]: GPO, 1929.

MLA (9th ed.) Citation

United States. Bureau of Mines. Calcium Sulphate Retarders for Portland Cement Clinker. GPO, 1929.

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