Columbia subject headings:
Harvard subject headings:
Bilbao (Spain)--History.
Books and reading--Spain--Bilbao--History.
Publishers and publishing--Spain--Bilbao--History.
Princeton subject headings:
Bilbao (Spain)--Intellectual life.
Freedom of the press--Spain--Bilbao--History--19th century.
Press--Spain--Bilbao--History--19th century.
Reading interests--Spain--Bilbao--History--19th century.