Não informado. (1912). Proceedings of the Annual Convention of the American Railway Engineering Association. American Railway Engineering Association.
Chicago-Zitierstil (17. Ausg.)Não informado. Proceedings of the Annual Convention of the American Railway Engineering Association. Chicago, Ill: American Railway Engineering Association, 1912.
MLA-Zitierstil (8. Ausg.)Não informado. Proceedings of the Annual Convention of the American Railway Engineering Association. American Railway Engineering Association, 1912.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.