Columbia subject headings:
Military art and science--Spain--History--18th century.
Naval art and science--Spain--History--18th century.
Shipbuilding--Economic aspects--Spain--History.
Spain--History, Naval--18th century.
Harvard subject headings:
Princeton subject headings:
Business networks--Spain--History--Congresses.
Defense industries--Government policy--Spain--History--Congresses.
Defense industries--Spain--History--Congresses.
Spain--Armed forces--Appropriations and expenditures--History--Congresses.