<ref>[http://newsbusters.org/blogs/noel-sheppard/2011/08/30/warren-raise-my-taxes-buffetts-company-may-owe-irs-1-billion#ixzz1We56oSBm Warren 'Raise My Taxes' Buffett's Company May Owe IRS $1 Billion, NewsBusters, August 30, 2011]</ref> | <ref>[http://newsbusters.org/blogs/noel-sheppard/2011/08/30/warren-raise-my-taxes-buffetts-company-may-owe-irs-1-billion#ixzz1We56oSBm Warren 'Raise My Taxes' Buffett's Company May Owe IRS $1 Billion, NewsBusters, August 30, 2011]</ref> |