APA (7th ed.) Citation

United States. Bureau of Standards. (1920). Steel rails from sink-head and ordinary rail ingots. GPO.

Chicago Style (17th ed.) Citation

United States. Bureau of Standards. Steel Rails from Sink-head and Ordinary Rail Ingots. [Washington]: GPO, 1920.

MLA (9th ed.) Citation

United States. Bureau of Standards. Steel Rails from Sink-head and Ordinary Rail Ingots. GPO, 1920.

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