Columbia subject headings:
Bulgakov, Sergiĭ, 1871-1944.
Philosophers--Russia--Biography.
Philosophy and religion--Russia--History--20th century.
Philosophy, Russian--20th century.
Philosophy, Russian--Religious aspects.
Theologians--France--Biography.
Theologians--Russia--Biography.
Harvard subject headings:
Princeton subject headings:
Bulgakov, Sergiĭ, 1871-1944.
Philosophers--Russia--Biography.
Philosophy and religion--Russia--History--20th century.
Philosophy, Russian--20th century.
Philosophy, Russian--Religious aspects.
Theologians--France--Biography.
Theologians--Russia--Biography.