Levin, J., & Nolan, J. F. (2000). Principles of classroom management: A professional decision-making model (3rd ed.). Boston: Allyn and Bacon.
Παραπομπή Chicago StyleLevin, James, και James F. Nolan. Principles of Classroom Management: A Professional Decision-making Model. 3rd ed. Boston: Allyn and Bacon, 2000.
Παραπομπή MLALevin, James, και James F. Nolan. Principles of Classroom Management: A Professional Decision-making Model. 3rd ed. Boston: Allyn and Bacon, 2000.
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