Columbia subject headings:
Constitutional history--Italy.
Mazzini, Giuseppe, 1805-1872.
Pius IX, Pope, 1792-1878.
Harvard subject headings:
Constitutional history--Italy
Mazzini, Giuseppe, 1805-1872.
Pius IX, Pope, 1792-1878.
Princeton subject headings:
Constitutional history--Italy.
Mazzini, Giuseppe, 1805-1872.
Pius IX, Pope, 1792-1878.