Beittel, June S. & Ribando Seelke, Clare. U.S.-Mexico Security Cooperation After "El Chapo" Guzmán's January 2016 Recapture, report, January 13, 2016; (https://digital.library.unt.edu/ark:/67531/metadc824698/m1/1/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .