Bureau of Economic Analysis http://www.bea.gov/
European Marketing Data and Statistics. 2011. (Ref. HA 1107 E88)
EuroStat http://ec.europa.eu/eurostat/web/main
FAO Statistics Database http://www.fao.org
Foreign Trade Statistics https://www.census.gov/foreign-trade/index.html
Industry, Trade and the Economy - Trade Statistics http://www.trade.gov/mas/ian/tradestatistics/index.asp
International Statistical Agencies http://stats.bls.gov/bls/other.htm#International
United States Trade Representative https://ustr.gov/
Penn World Table https://fred.stlouisfed.org/categories/33402
Trade Stats Express http://tse.export.gov/tse/tsehome.aspx
United Nations Statistics Division http://unstats.un.org/unsd/