References
http://www.aboutmcdonalds.com/mcd/our_company.html.
http://www.usatoday.com/story/money/business/2014/10/21/mcdonalds-fast-food- restaurants-earnings/17652697/.
http://www.businessinsider.in/McDonalds-CEO-%20Reveals-The-Brands-4-Biggest-Problems/articleshow/39772518.cms
http://adage.com/article/cmo-strategy/mcdonald-s-focus-improving-marketing-digital-menu/292155/.
http://www.usatoday.com/story/money/business/2014/03/21/mcdonalds-new-menu-item/6705499/.
http://finance.yahoo.com/echarts?s=MCD#%7B%22range%22%3A%225y%22%2C%22scale%22%3A%22linear%22%7D
https://finance.yahoo.com/q/co?s=MCD.
https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000063908&owner=exclude&count=40&hidefilings=0