Salzman, M. R. (1990). On Roman time: The codex-calendar of 354 and the rhythms of urban life in late antiquity. University of California Press.

Salzman, Michele Renee. On Roman Time: The Codex-calendar of 354 and the Rhythms of Urban Life in Late Antiquity. Berkeley: University of California Press, 1990.

Salzman, Michele Renee. On Roman Time: The Codex-calendar of 354 and the Rhythms of Urban Life in Late Antiquity. University of California Press, 1990.