Paul, I. (1973). A yankee reformer in Chile: The life and works of David Trumbull. William Carey Library.
Citazione stile Chigago Style (17a edizione)Paul, Irven. A Yankee Reformer in Chile: The Life and Works of David Trumbull. William Carey Library, 1973.
Citatione MLA (9a ed.)Paul, Irven. A Yankee Reformer in Chile: The Life and Works of David Trumbull. William Carey Library, 1973.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.