Columbia subject headings:
Opera producers and directors--Russia (Federation)--Biography.
Opera producers and directors--Soviet Union--Biography.
Pokrovskiĭ, B. (Boris), 1912-2009.
Harvard subject headings:
Opera producers and directors--Russia (Federation)--Biography.
Pokrovskiĭ, B. (Boris), 1912-2009
Princeton subject headings:
Opera producers and directors--Russia (Federation)--Biography.
Opera producers and directors--Soviet Union--Biography.
Pokrovskiĭ, B. (Boris), 1912-2009.