Columbia subject headings:
Labor unions--Mexico--Matamoros (Tamaulipas)
Labor unions--Mexico--Tijuana (Baja California)
Offshore assembly industry--Employees--Labor unions--Mexico--Matamoros (Tamaulipas)
Offshore assembly industry--Employees--Labor unions--Mexico--Tijuana (Baja California)
Harvard subject headings:
Labor unions--Mexico--Matamoros (Tamaulipas)
Labor unions--Mexico--Tijuana (Baja California)
Offshore assembly industry--Employees--Mexico--Matamoros (Tamaulipas)--Labor unions.
Offshore assembly industry--Employees--Mexico--Tijuana (Baja California)--Labor unions.
Princeton subject headings:
Labor unions--Mexico--Matamoros (Tamaulipas).
Labor unions--Mexico--Tijuana (Baja California).
Offshore assembly industry--Employees--Labor unions--Mexico--Matamoros (Tamaulipas).
Offshore assembly industry--Employees--Labor unions--Mexico--Tijuana (Baja California).