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Cicero, Marcus Tullius. Cato Maior de senectute.

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• Cicero, Marcus Tullius

• Notes on the Meaning and Use of Some Latin Adverbs and Conjunctions as Exemplified in Cicero's De Senectute (Ithaca, NY: Andrus and Church, 1888) (bound with another Latin-related text; page images at HathiTrust)

Items below (if any) are from related and broader terms.

• Cicero's Law: Rethinking Roman Law of the Late Republic (Edinburgh: Edinburgh University Press, c2016), ed. by Paul J. du Plessis (HTML and PDF files at Project MUSE)
• The Life of Cicero (2 volumes; New York: Harper and Bros., 1881), by Anthony Trollope
  • Volume I: Gutenberg text
  • Volume II: Gutenberg text and page images
• De Sallustii in Ciceronem et Invicem Invectivis (dissertation in Latin; 1913), by Alfons Kurfess (page images at HathiTrust; US access only)
• Plutarch's Lives of Themistocles, Pericles, Aristides, Alcibiades, and Coriolanus, Demosthenes, and Cicero, Caesar and Anthony, in the Translation Called Dryden's, Corrected and Revised by Arthur Hugh Clough (Harvard Classics v12, with introduction and notes; New York: P.F. Collier and Son, c1909), by Plutarch, ed. by Arthur Hugh Clough, Charles William Eliot, and William Allan Neilson
  • page images at HathiTrust
  • multiple formats at archive.org

• Letters of Cicero, by Marcus Tullius Cicero, trans. by Evelyn S. Shuckburgh
  • HTML at Bartleby
  • Gutenberg text

• Cicero und die Altrömischen Dichter: eine Literarhistorische Untersuchung (in German; Würzburg: F. Staudenraus, 1911), by Wilhelm Zillinger (page images at HathiTrust; US access only)

• De Auctoritate ac Fide Grammaticorum Latinorum in Constituenda Lectione Ciceronis Orationum in Verrem (dissertation in Latin; Berlin: E. Karras, 1883), by Hermann Karbaum
  • multiple formats at Google; US access only
  • multiple formats at archive.org
  • page images at HathiTrust

• Persuasive Language in Cicero's Pro Milone: A Close Reading and Commentary (London: University of London, c2013), by Lynn S. Fotheringham, contrib. by Marcus Tullius Cicero (PDF with commentary at Humanities Digital Library)

• Ciceroniana (full serial archives)

• Cicero, Against Verres, 2.1.53-86: Latin Text With Introduction, Study Questions, Commentary and English Translation (in Latin and English; Cambridge, UK: Open Book Publishers, 2011), by Marcus Tullius Cicero, ed. by Ingo Gildenhard
  • multiple formats with commentary at Open Book Publishers
  • page images at Google

• Persuasive Language in Cicero's Pro Milone: A Close Reading and Commentary (London: University of London, c2013), by Lynn S. Fotheringham, contrib. by Marcus Tullius Cicero (PDF with commentary at Humanities Digital Library)

• Cicero, On Pompey's Command (De Imperio), 27-49: Latin Text, Study Aids With Vocabulary, Commentary, and Translation (in Latin and English; Cambridge, UK: Open Book Publishers, 2011), by Marcus Tullius Cicero, ed. by Ingo Gildenhard and Louise Hodgson (multiple formats with commentary at Open Book Publishers and Dickinson)