Não informado. (1977). IABSE Structures. International Association for Bridge and Structural Engineering.
Chicago-Zitierstil (17. Ausg.)Não informado. IABSE Structures. Zurich, Suíça: International Association for Bridge and Structural Engineering, 1977.
MLA-Zitierstil (8. Ausg.)Não informado. IABSE Structures. International Association for Bridge and Structural Engineering, 1977.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.