Cita APA

Charles, C., & Barr, K. B. (1992). Building classroom discipline (4th.ed.). Longman.

Citación estilo Chicago

Charles, C.M, and Karen Blaine Barr. Building Classroom Discipline. 4th.ed. New York: Longman, 1992.

Cita MLA

Charles, C.M, and Karen Blaine Barr. Building Classroom Discipline. 4th.ed. Longman, 1992.