Columbia subject headings:
Harvard subject headings:
Fortification--Dictionaries--Polyglot.
German language--Dictionaries--Polyglot.
Military architecture--Dictionaries--Polyglot.
Princeton subject headings:
Dictionaries.
Fortification--Dictionaries--Polyglot.
German language--Dictionaries--English.
German language--Dictionaries--French.
Military architecture--Dictionaries--Polyglot.