Columbia subject headings:
Ukrainian language--Ukraine--Volhynia--1300-1700--History--Sources.
Ukrainian language--Ukraine--Volhynia--1300-1700--Readers.
Harvard subject headings:
Ukrainian language--Ukraine--Volhynia--1300-1700--History--Sources.
Ukrainian language--Ukraine--Volhynia--1300-1700--Readers.
Princeton subject headings:
Ukrainian language--Ukraine--Volhynia--1300-1700--History--Sources.
Ukrainian language--Ukraine--Volhynia--1300-1700--Readers.