vlogbrothers
Bill Gates and John Green Discuss Agriculture (2014x77)
Data di messa in onda: Set 22, 2014
Special bonus video! If we raise $100,000 to get clean water to people in Ethiopia, BILL GATES WILL MATCH IT WITH ANOTHER $100,000: http://water.org/johngreen
- Iniziato: Gen 2007
- Episodi: 2310
- Followers: 1