Columbia subject headings:
Agriculture--Economic aspects--Spain--Valencia.
Valencia (Spain : Region)--Economic conditions.
Valencia (Spain : Region)--History.
Harvard subject headings:
Agriculture--Economic aspects--Spain--Valencia (Region)
Valencia (Spain : Region)--Economic conditions.
Valencia (Spain : Region)--History.
Princeton subject headings:
Agriculture--Economic aspects--Spain--Valencia (Region).
Valencia (Spain : Region)--Economic conditions.
Valencia (Spain : Region)--History.