Não informado. (1948). Midwest Engineer. Western Society of Engineers.
Chicago-Zitierstil (17. Ausg.)Não informado. Midwest Engineer. Chicago, Ill: Western Society of Engineers, 1948.
MLA-Zitierstil (8. Ausg.)Não informado. Midwest Engineer. Western Society of Engineers, 1948.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.