Columbia subject headings:
Industries--Spain--Valencia (Region)
Industries--Spain.
Spain--Economic conditions.
Valencia (Spain : Region)--Economic conditions.
Harvard subject headings:
Industries--Spain
Industries--Spain--Valencia (Region)
Spain--Economic conditions
Valencia (Spain : Region)--Economic conditions.
Princeton subject headings:
Industries--Spain--Valencia (Region).
Industries--Spain.
Spain--Economic conditions.
Valencia (Spain : Region)--Economic conditions.