Wolfgang, C. H. (1999). Solving discipline problems: Methods and models for today's teachers (4th ed.). Boston: Allyn and Bacon.
Trích dẫn kiểu ChicagoWolfgang, Charles H. Solving Discipline Problems: Methods and Models for Today's Teachers. 4th ed. Boston: Allyn and Bacon, 1999.
Trích dẫn MLAWolfgang, Charles H. Solving Discipline Problems: Methods and Models for Today's Teachers. 4th ed. Boston: Allyn and Bacon, 1999.
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