[2] https://en.wikipedia.org/wiki/2009_City_of_Toronto_inside_and_outside_workers_strike
[3] CNN Wire Staff (2011). “Players, owners sign deal to end NFL lockout.” CNN.com. Retrieved from: http://edition.cnn.com/2011/SPORT/07/25/nfl.deal/
[4] Michael Pearson (2012). “Sorry about that, NFL chief says about replacements.” CNN.com. http://www.cnn.com/2012/09/27/sport/nfl-referees-deal/
[6]Gerald Mayer (2004). “Union Membership Trends in the United States.”
Cornell University International labour Relations School (Digital Commons). Retrieved from: http://digitalcommons.ilr.cornell.edu/cgi/viewcontent.cgi?article=1176&context=key_workplace and Department of labour, Bureau of labour Statistics (2016). “Economic News Release: Table 1. Union affiliation of employed wage and salary workers by selected characteristics.” BLS.gov. Retrieved from: http://www.bls.gov/news.release/union2.t01.htm
[7] Wikipedia® (2016). “labour Unions in the United States: Membership.” Retrieved from: https://en.wikipedia.org/wiki/labour_unions_in_the_United_States#Membership
[8] Kris Maher (2010). “Union Membership Drops 10%.” The Wall Street Journal. Retrieved from: http://www.wsj.com/articles/SB10001424052748703822404575019350727544666 and Steven Greenhouse (2011). “Union Membership in U.S. Fell to a 70-Year Low Last Year.” The New York Times. Retrieved from: http://www.nytimes.com/2011/01/22/business/22union.html
