Arrow publishers, 2016. 628pp. 0cm. It's 2004. DEA agent Art Keller has been fighting the war on drugs for thirty years in a blood feud against Adan Barrera, the head of El Federación, the world's most powerful cartel, and the man who brutally murdered Keller's partner. Putting Barrera awa 9781784750640 Estado de conservación: Regular