Ashby, J. C. (1967). Organized labor and the Mexican Revolution under Lázaro Cárdenas. University of North Carolina Press.

Ashby, Joe C. Organized Labor and the Mexican Revolution Under Lázaro Cárdenas. Chapel Hill: University of North Carolina Press, 1967.

Ashby, Joe C. Organized Labor and the Mexican Revolution Under Lázaro Cárdenas. University of North Carolina Press, 1967.