Não informado. Civil engineering. U.S. Department of Commerce, National Technical Information Service.
Chicago-Zitierstil (17. Ausg.)Não informado. Civil Engineering. Springfield, Va: U.S. Department of Commerce, National Technical Information Service.
MLA-Zitierstil (8. Ausg.)Não informado. Civil Engineering. U.S. Department of Commerce, National Technical Information Service.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.