APA (7th ed.) Citation

United States. Office of Education. (1919). Flag exercises for schools of nation. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Office of Education. Flag Exercises for Schools of Nation. Washington: U.S. GPO, 1919.

MLA (9th ed.) Citation

United States. Office of Education. Flag Exercises for Schools of Nation. U.S. GPO, 1919.

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