Columbia subject headings:
Nizhegorodskiĭ uezd (R.S.F.S.R.)--History.
Nizhegorodskiĭ uezd (R.S.F.S.R.)--Politics and government.
Harvard subject headings:
Archives
Auxiliary sciences of history.
Nizhegorodskiĭ uezd (R.S.F.S.R.)--History.
Nizhegorodskiĭ uezd (R.S.F.S.R.)--Politics and government.
Princeton subject headings: