Columbia subject headings:
Becker, Johann Philipp, 1809-1886.
Germany--History--Revolution, 1848-1849.
Revolutionaries--Germany--Biography.
Harvard subject headings:
Becker, Johann Philipp, 1809-1886
Princeton subject headings:
Becker, Johann Philipp, 1809-1886.
Germany--History--Revolution, 1848-1849.
Revolutionaries--Germany--Biography.