APA (7th ed.) Citation

United States. Office of Education. (1922). School janitor: Study of functions and administration of school janitor service. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Office of Education. School Janitor: Study of Functions and Administration of School Janitor Service. Washington: U.S. GPO, 1922.

MLA (9th ed.) Citation

United States. Office of Education. School Janitor: Study of Functions and Administration of School Janitor Service. U.S. GPO, 1922.

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