Columbia subject headings:
Bissolati, Leonida, 1857-1920.
Partito socialista italiano--History--20th century.
Socialists--Italy--Biography.
Harvard subject headings:
Bissolati, Leonida, 1857-1920.
Partito socialista italiano--History--20th century.
Socialists--Italy--Biography
Princeton subject headings:
Bissolati, Leonida, 1857-1920.
Partito socialista italiano--History--20th century.
Socialists--Italy--Biography.