Columbia subject headings:
Alessi, Galeazzo, 1512-1572.
Fortification--Early works to 1800.
Military architecture--Early works to 1800.
Harvard subject headings:
Alessi, Galeazzo, 1512-1572.
Fortification--Early works to 1800
Military architecture--Early works to 1800.
Princeton subject headings:
Alessi, Galeazzo, 1512-1572.
Architecture, Renaissance--Italy.
Military architecture--Italy.