Gomez, Luis Dugue
Bogota : Fundacion de Investigaciones Arqueologicas Nacionales, 1979.
Buku Teks
Wilder, Thornton, 1897-1975, author
[publisher not identified], [date of publication not identified]
Buku Teks
Wilder, Thornton, 1897-1975, author
Perennial Classics, 1998
Buku Teks
Wilder, Thornton, 1897-1975, author
Grosset and Dunlap, 1928
Buku Teks
Artikel Jurnal