Columbia subject headings:
Military history, Modern--18th century--Congresses.
Sociology, Military--History--18th century--Congresses.
Harvard subject headings:
Military history, Modern--18th century--Congresses.
Sociology, Military--History--18th century--Congresses.
Princeton subject headings:
Military history, Modern--18th century--Congresses.
Sociology, Military--History--18th century--Congresses.