Pfaff, R. W. (1998). Liturgical calenders, saints, and services in medieval England. Variorum collected studies series.
Citazione stile Chigago Style (17a edizione)Pfaff, Richard W. "Liturgical Calenders, Saints, and Services in Medieval England." Variorum Collected Studies Series 1998.
Citatione MLA (8a ed.)Pfaff, Richard W. "Liturgical Calenders, Saints, and Services in Medieval England." Variorum Collected Studies Series, 1998.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.