APA (7th ed.) Citation

United States. Department of Commerce. (1923). Water-gas tar emulsions. GPO.

Chicago Style (17th ed.) Citation

United States. Department of Commerce. Water-gas Tar Emulsions. [Washington]: GPO, 1923.

MLA (9th ed.) Citation

United States. Department of Commerce. Water-gas Tar Emulsions. GPO, 1923.

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