APA (7th ed.) Citation

United States. Office of Education. (1919). National Library Service bulletin. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Office of Education. National Library Service Bulletin. Washington: U.S. GPO, 1919.

MLA (9th ed.) Citation

United States. Office of Education. National Library Service Bulletin. U.S. GPO, 1919.

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