APA (7th ed.) Citation

United States. Bureau of Mines. (1938). Earth vibrations caused by mine blasting; Progress report 2. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Mines. Earth Vibrations Caused by Mine Blasting; Progress Report 2. [Washington]: [s.n.], 1938.

MLA (9th ed.) Citation

United States. Bureau of Mines. Earth Vibrations Caused by Mine Blasting; Progress Report 2. [s.n.], 1938.

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