Columbia subject headings:
Harvard subject headings:
Bulgakov, Sergiĭ, 1871-1944.
Christianity and politics
Philosophers--Russia--Biography
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--Clergy--Biography.
Theology--History--17th century
Princeton subject headings:
Biographies.
Bulgakov, Sergiĭ, 1871-1944.
Christianity and politics.
Philosophers--Russia--Biography.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--Clergy--Biography.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--Theology--History--20th century.