Columbia subject headings:
Hungary--Description and travel.
Jacquin, Nikolaus Joseph, Freiherr von, 1727-1817--Bibliography.
Joseph I, Holy Roman Emperor, 1678-1711.
Mines and mineral resources--Hungary.
Romanies.
Vienna (Austria)--Description and travel.
Harvard subject headings:
Hungary--Description and travel
Jacquin, Nikolaus Joseph, Freiherr von, 1727-1817--Bibliography.
Joseph I, Holy Roman Emperor, 1678-1711.
Mines and mineral resources--Hungary.
Romanies
Vienna (Austria)--Description and travel.
Princeton subject headings:
Hungary--Description and travel.
Jacquin, Nikolaus Joseph, Freiherr von, 1727-1817--Bibliography.
Joseph I, Holy Roman Emperor, 1678-1711.
Mines and mineral resources--Hungary.
Romanies.
Vienna (Austria)--Description and travel.