Columbia subject headings:
Mexico--History--European intervention, 1861-1867.
Puebla, Battle of, Puebla de Zaragoza, Mexico, 1862.
Harvard subject headings:
Mexico--History--European intervention, 1861-1867.
Puebla, Battle of, Puebla de Zaragoza, Mexico, 1862
Princeton subject headings:
Mexico--History--European intervention, 1861-1867.
Puebla, Battle of, Puebla de Zaragoza, Mexico, 1862.