SIMON HORNBLOWER and TONY SPAWFORTH. "Maxentius, Marcus Aurelius Valerius." Who's Who in the Classical World. 2000. Encyclopedia.com. 29 Nov. 2009 <http://www.encyclopedia.com>.
SIMON HORNBLOWER and TONY SPAWFORTH. "Maxentius, Marcus Aurelius Valerius." Who's Who in the Classical World. 2000. Encyclopedia.com. (November 29, 2009). http://www.encyclopedia.com/doc/1O10-MaxentiusMarcusAurelsVlrs.html
SIMON HORNBLOWER and TONY SPAWFORTH. "Maxentius, Marcus Aurelius Valerius." Who's Who in the Classical World. 2000. Retrieved November 29, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O10-MaxentiusMarcusAurelsVlrs.html