Gaya APA
Paul, I, (, , , , ). (1973).
A Yankee reformer in Chile, the life & works of David Trumbull .
South Pasadena:
William Carey Library.
Gaya MLA
Paul, Irven., (1894-, , , , ).
"A Yankee reformer in Chile, the life & works of David Trumbull ".
South Pasadena:
William Carey Library,
1973.
Buku.