Department of Labor(DOL), North American Agreement on Labor Cooperation (NAALC)(2001, November 29-30), 30 pages. The purpose of the event was to raise awareness of the issue of psychological and physical violence in North American workplaces and to provide practical solutions by sharing information, highlighting best practices and identifying successful methods of prevention.

http://www.dol.gov/ILAB/media/reports/nao/violenceworkrisk.htm