Marcus Tullius Cicero (1855). “Cicero's Three books of offices, or moral duties: also his Cato Major, an essay on old age; Lælius, an essay on friendship; Paradoxes; Scipio's dream; and Letter to Quintus on the duties of a magistrate”, p.250
Marcus Tullius Cicero, James LOGAN (Chief Justice of the Province of Pennsylvania.) (1750). “Cato Major; Or, a Treatise on Old Age ... With Explanatory Notes from the Roman History. By Mr. Loggan [sic]. To which is Prefixed, the Life of Marcus Tullius Cicero”, p.42