Columbia subject headings:
Agriculture and state--Austria--Styria.
Agriculture--Austria--Styria--Societies, etc.
Harvard subject headings:
Agriculture and state--Austria--Styria--History--19th century.
John, Archduke of Austria, 1782-1859--Views on agriculture.
Steirische Landwirtschaftsgesellschaft--History--19th century.
Princeton subject headings: