Não informado. Product Engineering. Product Design Digest Issue.
Chicago-Zitierstil (17. Ausg.)Não informado. Product Engineering. New York: Product Design Digest Issue.
MLA-Zitierstil (8. Ausg.)Não informado. Product Engineering. Product Design Digest Issue.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.