Columbia subject headings:
Harvard subject headings:
Bignami, E. (Enrico)
Bignami, Enrico, 1844-1921.
Italy--Politics and government--1870-1914--Sources.
Plebe (Lodi, Italy)
Socialism--Italy--19th century--Sources.
Socialism--Italy--History--19th century--Sources.
Princeton subject headings:
Bignami, Enrico, 1844-1921.
Italy--Politics and government--1870-1914.
Plebe (Lodi, Italy)
Socialism--Italy--History--19th century.