Los hermanos millonarios que financian la oposición a Obama
David Koch - Wikipedia
KOCH Newsroom | Brothers yes, but Charles and David Koch are not "brainless robots"
Por qué los poderosos hermanos Koch, que ayudaron a Donald Trump a llegar a la Casa Blanca, ahora se enfrentan a él - BBC News Mundo
Charles and David Koch - TheXtraordinary
Dueños del mundo | Babelia | EL PAÍS
:quality(75)/arc-anglerfish-arc2-prod-elcomercio.s3.amazonaws.com/public/ELXSCRDKCJDYBJUA5AQEDBVGJI.jpg "David Koch, donante multimillonario de causas republicanas, muere a los 79 años | MUNDO | GESTIÓN")
David Koch, donante multimillonario de causas republicanas, muere a los 79 años | MUNDO | GESTIÓN
2020 presidential election: Why Koch network won't help Trump's bid
The Koch Brothers Used Their Fortune to Power a Conservative Crusade
![Biografía] Los Koch, la familia más rica y poderosa de los Estados Unidos - Tentulogo](https://tentulogo.com/wp-content/uploads/BASE-CABECERA-POST-BLOG-1.jpg "Biografía] Los Koch, la familia más rica y poderosa de los Estados Unidos - Tentulogo")
Biografía] Los Koch, la familia más rica y poderosa de los Estados Unidos - Tentulogo
David Koch, billionaire conservative activist and philanthropist, dies at 79
Opinion | David Koch Was the Ultimate Climate Change Denier - The New York Times
What do Charles and David Koch want? - Lawyers, Guns & Money
Column: How MIT whitewashed the actions of alumnus David Koch - Los Angeles Times
La oscura historia de los hermanos Koch | Estados Unidos | elmundo.es
Oops, My Bad: Charles Koch Says He Regrets Dividing the Country, but Not Enough to Stop Funneling Shit Tons of Money to Republicans | Vanity Fair
Charles Koch - Wikipedia, la enciclopedia libre
David Koch's Nephew in Line to Take His Spot, Shift Away From Politics
Charles and David Koch - ABC News (Australian Broadcasting Corporation)
Who are the Koch brothers? - BBC News
KOCH Newsroom | Announcement from Charles Koch on David Koch's Retirement
David Koch, billionaire industrialist who influenced conservative politics, dies at 79 - The Washington Post
The shunned, possibly gay Koch brother no one knows about
