APA (7th ed.) Citation

District of Columbia. Board of Education. (1929). Course of study in history, 4th, 5th, and 6th grades, elementary schools. U.S. GPO.

Chicago Style (17th ed.) Citation

District of Columbia. Board of Education. Course of Study in History, 4th, 5th, and 6th Grades, Elementary Schools. Washington: U.S. GPO, 1929.

MLA (9th ed.) Citation

District of Columbia. Board of Education. Course of Study in History, 4th, 5th, and 6th Grades, Elementary Schools. U.S. GPO, 1929.