"The Freedman in Roman art and art history", Cambridge University Press, 2006, ISBN 0-521-85889-5, ISBN 978-0-521-85889-2* Pettitt, Paul.
"The Freedman in Roman art and art history", Cambridge University Press, 2006, ISBN 0-521-85889-5, ISBN 978-0-521-85889-2* Pettitt, Paul.