APA (7th ed.) Citation

Bagley, W. C. (1907). Classroom management: Its principles and technique. Macmillan.

Chicago Style (17th ed.) Citation

Bagley, William C. Classroom Management: Its Principles and Technique. New York: Macmillan, 1907.

MLA (9th ed.) Citation

Bagley, William C. Classroom Management: Its Principles and Technique. Macmillan, 1907.