Columbia subject headings:
Harvard subject headings:
Deutsche Assoziation der Absolventen und Freunde der Moskauer Lomonossow-Universität.
Humboldt, Alexander von, 1769-1859--Travel--Russia.
Natural history--Russia.
Russia (Federation)--Description and travel
Russia--Description and travel.
Russia--Discovery and exploration--German.
Scientific expeditions--Russia (Federation)
Scientific expeditions--Russia--History--19th century.
Princeton subject headings:
Humboldt, Alexander von, 1769-1859--Travel--Russia.
Russia--Discovery and exploration--German.
Scientific expeditions--Russia--History--19th century.