Columbia subject headings:
Cartography--History--Congresses.
Landscape architecture--History--Congresses.
Military art and science--Congresses.
Schmettau, Friedrich Wilhelm Karl, Graf von, 1742-1806--Congresses.
Harvard subject headings:
Cartographers--Germany--Biography.
Landscape architects--Germany.
Landscape architecture--Germany--History--18th century.
Schmettau, Friedrich Wilhelm Karl, Graf von, 1742-1806.
Princeton subject headings: