Columbia subject headings:
Italy--History--1815-1870.
Italy--History--1849-1870.
Italy--History--Revolution of 1848.
Public opinion--United States.
Roman question.
Harvard subject headings:
Italy--History--1849-1870.
Italy--History--Revolution of 1848.
Public opinion--United States
Roman question.
Princeton subject headings:
Italy--History--1848-1870.
Italy--History--1849-1870.
Italy--History--Revolution of 1848.
Public opinion--United States.
Roman question.