Columbia subject headings:
Manuscripts, Arabic--Bulgaria--Sofia--Catalogs.
Narodna biblioteka "Kiril i Metodiĭ"--Catalogs.
Harvard subject headings:
Manuscripts, Arabic--Bulgaria--Sofia--Catalogs.
Narodna biblioteka "Kiril i Metodiĭ"--Catalogs.
Princeton subject headings:
Manuscripts, Arabic--Bulgaria--Sofia--Catalogs.
Narodna biblioteka "Kiril i Metodiĭ"--Catalogs.