Columbia subject headings:
Bochumer Sieboldiana-Sammlung--Catalogs.
Manuscripts--Germany--Bochum--Catalogs.
Siebold, Philipp Franz von, 1796-1866--Archives--Catalogs.
Siebold, Philipp Franz von, 1796-1866--Correspondence--Catalogs.
Harvard subject headings:
Bochumer Sieboldiana-Sammlung--Catalogs.
Manuscripts--Germany--Bochum--Catalogs.
Siebold, Philipp Franz von, 1796-1866--Archives--Catalogs.
Siebold, Philipp Franz von, 1796-1866--Correspondence--Catalogs.
Princeton subject headings:
Manuscripts--Germany--Bochum--Catalogs.
Siebold, Alexander, Freiherr von, 1846-1911--Archives--Catalogs.
Siebold, Alexander, Freiherr von, 1846-1911--Correspondence--Catalogs.