APA (7th ed.) Citation

National Education Association of the United States. Dept. of Supervisors and Directors of Instruction. (1921). Educational method. Bureau of Teachers College for the Department of Supervisors and Directors of Instruction of the National Education Association.

Chicago Style (17th ed.) Citation

National Education Association of the United States. Dept. of Supervisors and Directors of Instruction. Educational Method. Camden, N.J: Bureau of Teachers College for the Department of Supervisors and Directors of Instruction of the National Education Association, 1921.

MLA (9th ed.) Citation

National Education Association of the United States. Dept. of Supervisors and Directors of Instruction. Educational Method. Bureau of Teachers College for the Department of Supervisors and Directors of Instruction of the National Education Association, 1921.