Oikonomides, Al. N., and M. C. J. Miller. Hanno the Carthaginian: Periplus or Circumnavigation. Chicago: Ares Publishers, 1995.
Osgood, Josiah. Caesar's Legacy: Civil War and the Emergence of the Roman Empire. Cambridge: Cambridge University Press, 2006.
Pallottino, Massimo. A History of Earliest Italy. Ann Arbor: University of Michigan Press, 1991, 2006.
Parenti, Michael. The Assassination of Julius Caesar: A People's History of Ancient Rome. New York: The New Press, 2003.
Peddie, John. Conquest: The Roman Invasion of Britain. New York: St. Martin's Press, 1987.
Puhvel, Jaan. Comparative Mythology. Baltimore, MD: Johns Hopkins University Press, 1987.
Rankin, H. D. Celts and the Classical World. London: Areopagitica Press, 1987.
Richardson, L., Jr. A New Topographical Dictionary of Ancient Rome. Baltimore, MD: Johns Hopkins University Press, 1992.
Riggsby, Andrew M. Caesar in Gaul and Rome: War in Words. Austin: University of Texas Press, 2006.
Roseman, Christina. Pytheas of Massalia: On the Ocean. Chicago: Ares Publishers, 1994.
Ross, Anne. Pagan Celtic Britain. London: Constable, 1993.
Scarre, Chris. The Penguin Historical Atlas of Ancient Rome. New York: Penguin, 1995.
Scullard, H. H. From The Gracchi to Nero: A History of Rome from 133 B.C. to A.D. 68. New York: Routledge, 1982.
Shaw, Brent D. Spartacus and the Slave Wars: A Brief History with Documents.
Boston: Bedford / St. Martin's, 2001. Snyder, Christopher. The Britons. Oxford: Blackwell, 2003.
Spaeth, John. «Caesar's Poetic Interests». The Classical Journal 26.8 (1930:598–604.
Syme, Ronald. The Roman Revolution. Oxford: Oxford University Press, 1939.
Tatum, W. Jeffery. The Patrician Tribune: Publius Clodius Pulcher. Chapel Hill: University of North Carolina Press, 1999.
Temkin, Owsei. The Falling Sickness. Baltimore, MD: Johns Hopkins University Press, 1994.
Wills, Garry. Cincinnatus: George Washington and the Enlightenment. Garden City, NY: Doubleday, 1984.
Wistrand, Erik. Caesar in Contemporary Society. Goteborg, Swed.: Kungl. Veten-skaps-och Vitterhets-Samhallet, 1978.