Le Roy, F., Robert, M., & Giuliani, P. (2013). Introduction.
Cita Chicago (17th ed.)Le Roy, Frédéric, Marc Robert, i Philippe Giuliani. Introduction. 2013.
Cita MLA (8th ed.)Le Roy, Frédéric, et al. Introduction. 2013.
Atenció: Aquestes cites poden no estar 100% correctes.