National Cooperative Highway Research Program, Kriger, D. S., Shiu, S., & Naylor, S. (2006). Estimating toll road demand and revenue. Transportation Research Board, National Research Council.
Chicago-referens (17:e uppl.)National Cooperative Highway Research Program, David S. Kriger, Suzette Shiu, och Sasha Naylor. Estimating Toll Road Demand and Revenue. Washington, D.C: Transportation Research Board, National Research Council, 2006.
MLA-referens (9:e uppl.)National Cooperative Highway Research Program, et al. Estimating Toll Road Demand and Revenue. Transportation Research Board, National Research Council, 2006.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.