Riche, P. (1978). Daily life in the world of Charlemagne. University of Pennsylvania.
Cita Chicago (17th ed.)Riche, Pierre. Daily Life in the World of Charlemagne. Pennsylvania: University of Pennsylvania, 1978.
Cita MLA (9th ed.)Riche, Pierre. Daily Life in the World of Charlemagne. University of Pennsylvania, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.