APA (7th ed.) Citation

District of Columbia. Board of Education. (1931). Course of study in arithmetic, kindergarten and grades I to VI. U.S. GPO.

Chicago Style (17th ed.) Citation

District of Columbia. Board of Education. Course of Study in Arithmetic, Kindergarten and Grades I to VI. Washington: U.S. GPO, 1931.

MLA (9th ed.) Citation

District of Columbia. Board of Education. Course of Study in Arithmetic, Kindergarten and Grades I to VI. U.S. GPO, 1931.

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