APA (7th ed.) Citation

United States. Department of the Interior. (1925). Training of dental hygienists. [s.n.].

Chicago Style (17th ed.) Citation

United States. Department of the Interior. Training of Dental Hygienists. [Washington]: [s.n.], 1925.

MLA (8th ed.) Citation

United States. Department of the Interior. Training of Dental Hygienists. [s.n.], 1925.

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