Não informado. (1929). Machine Design: As it affects engineering, production, sales. Penton Publishing.
Chicago-Zitierstil (17. Ausg.)Não informado. Machine Design: As It Affects Engineering, Production, Sales. Cleveland, Ohio: Penton Publishing, 1929.
MLA-Zitierstil (8. Ausg.)Não informado. Machine Design: As It Affects Engineering, Production, Sales. Penton Publishing, 1929.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.