Columbia subject headings:
Ballet dancers--Soviet Union--Biography.
Ballet--Soviet Union.
Berg, Olʹga Maksimilianovna, 1907-1991.
Harvard subject headings:
Ballet dancers--Soviet Union--Biography
Ballet--Soviet Union.
Berg, Olʹga Maksimilianovna, 1907-1991.
Princeton subject headings:
Ballet dancers--Soviet Union--Biography.
Ballet--Soviet Union.
Berg, Olʹga Maksimilianovna, 1907-1991.