Columbia subject headings:
Cossacks--Ukraine--History--Sources.
Ukraine--History--1340-1648--Sources.
Ukraine--History--1648-1775--Sources.
Harvard subject headings:
Cossacks--Ukraine--History--Sources.
Manuscripts, Ukrainian.
Ukraine--History--1340-1648--Sources.
Ukraine--History--1648-1775--Sources.
Ukraine--History--Sources.
Princeton subject headings: