Income statements
http://www.investopedia.com/articles/04/022504.asp
http://www.sec.gov/investor/pubs/begfinstmtguide.htm

U.S. securities exchange
http://www.sec.gov/investor/pubs/begfinstmtguide.htm

Balance sheets
http://www.ecommercefuel.com/how-to-read-a-balance-sheet/

http://m.wikihow.com/Read-a-Balance-Sheet