المساهمون: Goulet, Jean-Guy., Miller, Bruce G.
URL الوصول: http://www.loc.gov/catdir/toc/ecip074/2006036210.htmlhttp://www.loc.gov/catdir/enhancements/fy0705/2006036210-b.htmlhttp://www.loc.gov/catdir/enhancements/fy0705/2006036210-d.html