Columbia subject headings:
Harvard subject headings:
Biblioteca apostolica vaticana--Catalogs.
Byzantine Empire--Commerce--Manuscripts--Catalogs.
Byzantine Empire--Economic conditions--Manuscripts--Catalogs.
Byzantine Empire--History--Sources.
Manuscripts, Greek--Vatican City--Catalogs.
Princeton subject headings:
Biblioteca apostolica vaticana--Catalogs.
Byzantine Empire--Commerce--Manuscripts--Catalogs.
Byzantine Empire--Economic conditions--Manuscripts--Catalogs.
Byzantine Empire--History--Sources.
Manuscripts, Greek--Vatican City--Catalogs.