Reuter, J. B. (1998). The gentle warrior: The story of Father George J. Willmann, S.J. Knights of Columbus, Father George J. Willman Charities.
Citazione stile Chigago Style (17a edizione)Reuter, James B. The Gentle Warrior: The Story of Father George J. Willmann, S.J. Manila: Knights of Columbus, Father George J. Willman Charities, 1998.
Citatione MLA (9a ed.)Reuter, James B. The Gentle Warrior: The Story of Father George J. Willmann, S.J. Knights of Columbus, Father George J. Willman Charities, 1998.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.