Columbia subject headings:
Harvard subject headings:
Díaz, Porfirio, 1830-1915--Portraits.
Díaz, Porfirio, 1830-1915.
Mexico--History--1867-1910.
Presidents--Mexico--Biography
Princeton subject headings:
Díaz, Porfirio, 1830-1915--Portraits.
Díaz, Porfirio, 1830-1915.
Presidents--Mexico--Biography.