Columbia subject headings:
Harvard subject headings:
Historians--Germany--Biography
Mommsen, Theodor, 1817-1903
Mommsen, Theodor, 1817-1903--Pictorial works.
Princeton subject headings:
Historians--Germany--Biography.
Mommsen, Theodor, 1817-1903--Pictorial works.
Mommsen, Theodor, 1817-1903.