Columbia subject headings:
Königsberger Staatsarchiv--Catalogs.
Manuscripts, German--Russia (Federation)--Kaliningrad (Kaliningradskai︠a︡ oblastʹ)--Catalogs.
Manuscripts, Medieval--Russia (Federation)--Kaliningrad (Kaliningradskai︠a︡ oblastʹ)--Catalogs.
Staats- und Universitätsbibliothek (Königsberg, Germany)--Catalogs.
Harvard subject headings:
Manuscripts, German--Russia (Federation)--Kaliningrad (Kaliningradskai︠a︡ oblastʹ)--Catalogs.
Manuscripts, Medieval--Russia (Federation)--Kaliningrad (Kaliningradskai︠a︡ oblastʹ)--Catalogs.
Staats- und Universitätsbibliothek (Königsberg, Germany)--Catalogs.
Princeton subject headings:
Catalogs.
Königsberger Staatsarchiv--Catalogs.
Staats- und Universitätsbibliothek (Königsberg, Germany)--Catalogs.