Cita APA (7th ed.)
Charles, C., & Barr, K. B. (1992). Building classroom discipline (4th.ed.). Longman.
Cita Chicago (17th ed.)
Charles, C.M, i Karen Blaine Barr. Building Classroom Discipline. 4th.ed. New York: Longman, 1992.
Cita MLA (9th ed.)
Charles, C.M, i Karen Blaine Barr. Building Classroom Discipline. 4th.ed. Longman, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.