Clark. The Vision of Catholic Social Thought. Augsburg Fortress Publishers.
Citazione stile Chigago Style (17a edizione)Clark. The Vision of Catholic Social Thought. Augsburg Fortress Publishers.
Citatione MLA (9a ed.)Clark. The Vision of Catholic Social Thought. Augsburg Fortress Publishers.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.