Columbia subject headings:
Riehl, Wilhelm Heinrich, 1823-1897--Appreciation--Soviet Union.
Soviet Union--Intellectual life.
Harvard subject headings:
Riehl, Wilhelm Heinrich, 1823-1897--Appreciation--Soviet Union.
Soviet Union--Intellectual life.
Princeton subject headings:
Riehl, Wilhelm Heinrich, 1823-1897--Appreciation--Soviet Union.
Soviet Union--Intellectual life.