The Mexican Southeast League was a short-season Class-A circuit in Minor league baseball which operated from 1964 through 1970. Throughout its existence, the MSL served as a farm system for the Class Triple-A Mexican League.
Johnson, Lloyd; Wolff, Miles (1993). Encyclopedia of Minor League Baseball. Baseball America. ISBN978-0-96-371898-3
Treto Cisneros, Pedro (2002). The Mexican League/La Liga Mexicana: Comprehensive Player Statistics, 1937-2001. McFarland & Company. ISBN978-0-78-641378-2