Columbia subject headings:
Emperors--Rome--Biography.
Marcus Aurelius, Emperor of Rome, 121-180.
Philosophers--Rome--Biography.
Rome--History--Marcus Aurelius, 161-180.
Harvard subject headings:
Emperors--Rome--Biography
Marcus Aurelius, Emperor of Rome, 121-180.
Philosophers--Rome--Biography
Rome--History--Marcus Aurelius, 161-180.
Princeton subject headings:
Marcus Aurelius, Emperor of Rome, 121-180.
Rome--History--Antonines, 96-192.