Witheford, D. K. (1997). Outsourcing of state highway facilities and services. National Academy Press.
Chicago-Zitierstil (17. Ausg.)Witheford, David K. Outsourcing of State Highway Facilities and Services. Washington, D.C: National Academy Press, 1997.
MLA-Zitierstil (9. Ausg.)Witheford, David K. Outsourcing of State Highway Facilities and Services. National Academy Press, 1997.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.