Columbia subject headings:
Harvard subject headings:
Guipúzcoa (Spain)--Economic conditions.
Industrial policy--Spain--Guipúzcoa--History.
Industrial policy--Spain--Vizcaya--History.
Industries--Spain--Guipúzcoa--History.
Industries--Spain--Vizcaya--History.
Vizcaya (Spain)--Economic conditions.
Princeton subject headings:
Guipúzcoa (Spain)--Economic conditions.
Industrial policy--Spain--Guipúzcoa--History.
Industrial policy--Spain--Vizcaya--History.
Industries--Spain--Guipúzcoa--History.
Industries--Spain--Vizcaya--History.
Vizcaya (Spain)--Economic conditions.