Brooke, C. N. L. (1989). Priest, Deacon and Layman, from St Peter Damian to St Francis. Studies in church history, 26, 65-85. doi:10.1017/S0424208400010871
Citazione stile Chigago Style (17a edizione)Brooke, Christopher Nugent Lawrence. "Priest, Deacon and Layman, from St Peter Damian to St Francis." Studies in Church History 26 (1989): 65-85, https://doi.org/10.1017/S0424208400010871.
Citatione MLA (9a ed.)Brooke, Christopher Nugent Lawrence. "Priest, Deacon and Layman, from St Peter Damian to St Francis." Studies in Church History, vol. 26, 1989, pp. 65-85, https://doi.org/10.1017/S0424208400010871.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.
