Columbia subject headings:
Architecture--Spain--Cantabria--History--16th century.
Architecture--Spain--Cantabria--History--17th century.
Architecture--Spain--Cantabria--History--18th century.
Harbors--Spain--Cantabria--History--16th century.
Harbors--Spain--Cantabria--History--17th century.
Harbors--Spain--Cantabria--History--18th century.
Urbanization--Spain--Cantabria--History--16th century.
Urbanization--Spain--Cantabria--History--17th century.
Urbanization--Spain--Cantabria--History--18th century.
Harvard subject headings:
Architecture--Spain--Cantabria.
Cities and towns--Spain--Atlantic Coast.
Cities and towns--Spain--Cantabria.
City planning--Spain--Cantabria.
Princeton subject headings:
Architecture--Spain--Cantabria--History--16th century.
Architecture--Spain--Cantabria--History--17th century.
Architecture--Spain--Cantabria--History--18th century.
Harbors--Spain--Cantabria--History--16th century.
Harbors--Spain--Cantabria--History--17th century.
Harbors--Spain--Cantabria--History--18th century.
Urbanization--Spain--Cantabria--History--16th century.
Urbanization--Spain--Cantabria--History--17th century.
Urbanization--Spain--Cantabria--History--18th century.