Gervase Markham, William Lawson (1668). “A Way to Get Wealth: Containing Six Principall Vocations, Or Callings, in which Every Good Husband Or House-wife May Lawfully Imploy Themselves ...”
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.241