Não informado. (1952). Bulletin of Mechanical Engineering Education. Wynn Williams Publishers.
Chicago-Zitierstil (17. Ausg.)Não informado. Bulletin of Mechanical Engineering Education. Wreyham, Inglaterra: Wynn Williams Publishers, 1952.
MLA-Zitierstil (8. Ausg.)Não informado. Bulletin of Mechanical Engineering Education. Wynn Williams Publishers, 1952.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.