Peters, E. (1990). The potter's field: The seventeenth chronicle of Brother Cadfael : [a medieval whodunnit]. Headline.
Citazione stile Chigago Style (17a edizione)Peters, Ellis. The Potter's Field: The Seventeenth Chronicle of Brother Cadfael : [a Medieval Whodunnit]. London: Headline, 1990.
Citatione MLA (9a ed.)Peters, Ellis. The Potter's Field: The Seventeenth Chronicle of Brother Cadfael : [a Medieval Whodunnit]. Headline, 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.