Columbia subject headings:
Avvakum Petrovich, Protopope, 1620 or 1621-1682.
Old Believers--Apologetic works--Early works to 1800.
Old Believers--Russia--Biography.
Harvard subject headings:
Princeton subject headings:
Avvakum Petrovich, Protopope, 1620 or 1621-1682.
Clergy--Russia--Biography.
Old Believers--Russia--Biography.