Columbia subject headings:
Hungarian periodicals--Bibliography--Microform catalogs.
Országos Széchényi Könyvtár--Microform catalogs.
Periodicals--Bibliography--Microform catalogs.
Harvard subject headings:
Princeton subject headings:
Hungarian periodicals--Bibliography--Microform catalogs.
Országos Széchényi Könyvtár--Microform catalogs.
Periodicals--Bibliography--Microform catalogs.