Não informado. (2018). Roads and Road Construction. Carriers Publishing Company.
Chicago-Zitierstil (17. Ausg.)Não informado. Roads and Road Construction. London: Carriers Publishing Company, 2018.
MLA-Zitierstil (8. Ausg.)Não informado. Roads and Road Construction. Carriers Publishing Company, 2018.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.