Παραπομπή σε μορφή APA (7η εκδ.)

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.

Παραπομπή σε μορφή Chicago (17η εκδ.)

National Cooperative Highway Research Program, David S. Kriger, Suzette Shiu, και Sasha Naylor. Estimating Toll Road Demand and Revenue. Washington, D.C: Transportation Research Board, National Research Council, 2006.

Παραπομπή σε μορφή MLA (9th εκδ.)

National Cooperative Highway Research Program, et al. Estimating Toll Road Demand and Revenue. Transportation Research Board, National Research Council, 2006.