1.
Federico-Tena World Population Historical Database : Belgium
2.
3.
Federico-Tena World Population Historical Database : Belgium Congo (Zaire)
Federico-Tena World Population Historical Database : Luxembourg
Federico-Tena World Population Historical Database : Netherlands
Federico-Tena World Population Historical Database : British North Borneo (Sabah)
Absell-Federico-Tena World Trade Historical Database 1948-2020 : Netherlands Antilles
Absell-Federico-Tena World Trade Historical Database 1948-2020 : Belgium
Absell-Federico-Tena World Trade Historical Database 1948-2020 : Netherlands