Joanne Mariner; Malcolm Smart (2001). "1 I. SUMMARY AND RECOMMENDATIONS"(PDF). The "Sixth Division" : military-paramilitary ties and U.S. policy in Colombia (illustrated ed.). New York, NY: Human Rights Watch. p. 1. ISBN9781564322654. Archived(PDF) from the original on 2016-12-13. Retrieved 30 April 2017.
"Archived copy". CBS News. Archived from the original on 2012-11-04. Retrieved 2020-04-16.{{cite web}}: CS1 maint: archived copy as title (link) CS1 maint: bot: original URL status unknown (link)
Joanne Mariner; Malcolm Smart (2001). "1 I. SUMMARY AND RECOMMENDATIONS"(PDF). The "Sixth Division" : military-paramilitary ties and U.S. policy in Colombia (illustrated ed.). New York, NY: Human Rights Watch. p. 1. ISBN9781564322654. Archived(PDF) from the original on 2016-12-13. Retrieved 30 April 2017.
Chomsky, Noam. "On Colombia". chomsky.info. Archived from the original on 2017-05-18. Retrieved 30 April 2017.