Não informado. (1954). West Coast South America series. American University Field Staff.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. West Coast South America Series. New York: American University Field Staff, 1954.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. West Coast South America Series. American University Field Staff, 1954.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.