Columbia subject headings:
Harvard subject headings:
Biographies.
Communism and Christianity--Soviet Union--History.
Historians--France--Biography
Pascal, Pierre, 1890-1983.
Revolutionaries--Soviet Union--Biography
Princeton subject headings:
Communism and Christianity--Soviet Union--History.
Historians--France--Biography.
Pascal, Pierre, 1890-1983.
Revolutionaries--Soviet Union--Biography.