Não informado. (1951). Archeological research series. U.S. Department of the Interior.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Archeological Research Series. Washington: U.S. Department of the Interior, 1951.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Archeological Research Series. U.S. Department of the Interior, 1951.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.