APA (7th ed.) Citation

United States. Department of the Interior. (1930). Sanitation of schools; suggestions for teachers. GPO.

Chicago Style (17th ed.) Citation

United States. Department of the Interior. Sanitation of Schools; Suggestions for Teachers. [Washington]: GPO, 1930.

MLA (9th ed.) Citation

United States. Department of the Interior. Sanitation of Schools; Suggestions for Teachers. GPO, 1930.

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