http://www.surfnetkids.com/laborday.htm
http://theholidayspot.com/laborday/
http://www.pbs.org/newshour/bb/business/september96/labor_day_9-2.html
http://classbrain.com/artholiday/publish/article_125.shtml
http://www.surfnetkids.com/laborday.htm
http://www.kidsturncentral.com/holidays/laborday.htm
http://www.usconsulate.org.hk/pas/kids/ld.htm
http://www.factmonster.com/spot/labor1.html
http://voices.washingtonpost.com/answer-sheet/civics-education/things-to-know-about-labor-day.html
http://holidays.mrdonn.org/laborday.html