Columbia subject headings:
Cato, Marcus Porcius, 234 B.C.-149 B.C.
Cicero, Marcus Tullius.
Harvard subject headings:
Cato, Marcus Porcius, 234 B.C.-149 B.C.
Cicero, Marcus Tullius
Princeton subject headings:
Cato, Marcus Porcius, 234 B.C.-149 B.C.
Cicero, Marcus Tullius.