Pfaff, R. W. (1998). Liturgical calendars, saints, and services in medieval England. Ashgate.
Chicago-viite (17. p.)Pfaff, Richard William. Liturgical Calendars, Saints, and Services in Medieval England. Aldershot, Hampshire: Ashgate, 1998.
MLA-viite (8. p.)Pfaff, Richard William. Liturgical Calendars, Saints, and Services in Medieval England. Ashgate, 1998.
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