Columbia subject headings:
Harvard subject headings:
Costa, Giacomo, 1833-1897.
Ovada (Italy)--History--19th century--Sources.
Ovada (Italy)--History--19th century.
Ovada (Italy)--Politics and government--19th century--Sources.
Ovada (Italy)--Politics and government--19th century.
Public officers--Italy--Ovada--Biography.
Princeton subject headings:
Costa, Giacomo.
Ovada (Italy)--History--19th century--Sources.
Ovada (Italy)--History--19th century.
Ovada (Italy)--Politics and government--History--19th century--Sources.
Ovada (Italy)--Politics and government--History--19th century.
Public officers--Italy--Ovada--Biography.