RT Book T1 Codices pseudo-Isidoriani: a palaeographico-historical study T2 Monumenta iuris canonici / C JF Monumenta iuris canonici / C A1 Williams, Schafer 1910-1982 LA English PP New York, NY PB Fordham Univ. Press YR 1971 UL https://ixtheo.de/Record/043753817 SN 0823209105