Columbia subject headings:
Labor union democracy--Mexico.
Sindicato de Telefonistas de la República Mexicana.
Telephone companies--Mexico--Employees--Labor unions.
Harvard subject headings:
Sindicato de Telefonistas de la República Mexicana.
Telephone companies--Employees--Labor unions--Mexico.
Telephone companies--Mexico--Employees.
Princeton subject headings:
Labor union democracy--Mexico.
Sindicato de Telefonistas de la República Mexicana.
Telephone companies--Employees--Labor unions--Mexico.