Columbia subject headings:
Labor unions--Mexico--Veracruz (Veracruz-Llave)--Archival resources--Catalogs.
Harvard subject headings:
Fondo "Miguel Angel Montoya Cortés"--Catalogs.
Instituto Nacional de Antropología e Historia (Mexico). Centro Regional de Veracruz--Archives--Catalogs.
Labor unions--Mexico--Veracruz (Veracruz-Llave)--History--Sources--Bibliography--Catalogs.
Labor unions--Mexico--Veracruz--History--Sources--Bibliography--Catalogs.
Montoya Cortés, Miguel Angel--Archives--Catalogs.
Restaurants--Employees--Labor unions--Mexico--Veracruz--History--Sources--Bibliography--Catalogs.
Unión de Empleados de Restaurantes Consolidada de Veracruz--Archives--Catalogs.
Working class--Mexico--Veracruz (Vercruz-Llave)--History--Sources--Bibliography--Catalogs.
Working class--Mexico--Veracruz--History--Sources--Bibliography--Catalogs.
Princeton subject headings:
Labor unions--Mexico--Vera Cruz (State)--Bibliography--Catalogs.
Montoya Cortés, Miguel Angel--Archives--Catalogs.
Working class--Mexico--Vera Cruz (State)--Bibliography--Catalogs.