Sources
www.historylearningsite.co.uk (Summary)
www.historyonthenet.com/ww2/cause (How it affected the world & Weaknesses)
www.johndclare.net/EL3.htm (Strengths)
http://www.bbc.co.uk/history/worldwars/wwone/league_nations_01.shtml (Pictures &Key events)
http://www.pbs.org/wgbh/amex/wilson/portrait/wp_league.html (Background)