Lakó György: Proto Finno-Ugric sources of the Hungarian phonetic stock (Budapest, 1968)
PROTO FINNO-UGRIC SOURCES of the HUNGARIAN PHONETIC STOCK by GYÖRGY LAKÓ AKADÉMIAI KIADÓ BUDAPEST
PROTO FINNO-UGRIC SOURCES of the HUNGARIAN PHONETIC STOCK by GYÖRGY LAKÓ AKADÉMIAI KIADÓ BUDAPEST