Não informado. (1948). Collected papers from the Museum of Natural History. Museum of Natural History.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Collected Papers from the Museum of Natural History. Aarhus, Dinamarca: Museum of Natural History, 1948.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Collected Papers from the Museum of Natural History. Museum of Natural History, 1948.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.