Dyfyniad APA
Johnson, D. W., & Johnson, R. T. (1995). Reducing school violence through conflict resolution. Association for Supervision and Curriculum Development.
Dyfyniad Arddull Chicago
Johnson, David W., and Roger T. Johnson. Reducing School Violence Through Conflict Resolution. Alexandria, Va.: Association for Supervision and Curriculum Development, 1995.
Dyfyniad MLA
Johnson, David W., and Roger T. Johnson. Reducing School Violence Through Conflict Resolution. Association for Supervision and Curriculum Development, 1995.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.