Não informado. (1912). Proceedings of the Annual Convention of the American Railway Engineering Association. American Railway Engineering Association.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Proceedings of the Annual Convention of the American Railway Engineering Association. Chicago, Ill: American Railway Engineering Association, 1912.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Proceedings of the Annual Convention of the American Railway Engineering Association. American Railway Engineering Association, 1912.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.