Columbia subject headings:
Historians--Russia (Federation)--Biography.
Historians--Soviet Union--Biography.
Osadchiĭ, I. P. (Ivan Pavlovich)
Russia (Federation)--History--Biography.
Soviet Union--History--Biography.
Harvard subject headings:
Historians--Russia (Federation)--Biography
Historians--Soviet Union--Biography
Osadchiĭ, I. P. (Ivan Pavlovich)
Russia (Federation)--History--1991-
Soviet Union--History.
Princeton subject headings:
Historians--Russia (Federation)--Biography.
Historians--Soviet Union--Biography.
Osadchiĭ, I. P. (Ivan Pavlovich)
Russia (Federation)--History--1991-
Soviet Union--History.