Columbia subject headings:
Nuclear industry--Employees--Labor unions--Political activity--Mexico.
Sindicato Unico de Trabajadores de la Industria Nuclear (Mexico)--Political activity.
Syndicalism--Mexico.
Harvard subject headings:
Nuclear industry--Employees--Labor unions--Mexico--Political activity.
Sindicato Unico de Trabajadores de la Industria Nuclear (Mexico)--Political activity.
Syndicalism--Mexico.
Princeton subject headings:
Nuclear industry--Employees--Labor unions--Mexico--Political activity.
Sindicato Unico de Trabajadores de la Industria Nuclear (Mexico)