Columbia subject headings:
Lemkivshchyna (Poland and Slovakia)--Bibliography.
Prešov Region (Czechoslovakia)--Bibliography.
Ruthenians--Bibliography.
Slavonia (Croatia)--Bibliography.
Vojvodina (Serbia)--Bibliography.
Zakarpatsʹka oblastʹ (Ukraine)--Bibliography.
Harvard subject headings:
Lemkivshchyna (Poland and Slovakia)--Bibliography.
Prešov Region (Slovakia)--Bibliography.
Ruthenians--Bibliography.
Slavonia (Croatia)--Bibliography.
Vojvodina (Serbia)--Bibliography.
Zakarpatsʹka oblastʹ (Ukraine)--Bibliography.
Princeton subject headings:
Lemkivshchyna (Poland and Slovakia)--Bibliography.
Ruthenians--Bibliography.
Slavonia (Croatia)--Bibliography.
Vojvodina (Serbia)--Bibliography.
Zakarpatsʹka oblastʹ (Ukraine)--Bibliography.