Columbia subject headings:
Historiography--Russia--Congresses.
Rostovtzeff, Michael Ivanovitch, 1870-1952--Congresses.
Harvard subject headings:
Civilization, Classical.
Classicists--Russia--Biography.
Rostovtzeff, Michael Ivanovitch, 1870-1952
Princeton subject headings:
Historiography--Russia--Congresses.
Rostovtzeff, Michael Ivanovitch, 1870-1952--Congresses.