National Research Council (U.S.). Highway Research Board. (1973). Freeway operational improvements. National Academy of Science - National Research Council.
Style de citation Chicago (17e éd.)National Research Council (U.S.). Highway Research Board. Freeway Operational Improvements. Washington, D.C: National Academy of Science - National Research Council, 1973.
Style de citation MLA (9e éd.)National Research Council (U.S.). Highway Research Board. Freeway Operational Improvements. National Academy of Science - National Research Council, 1973.
Attention : ces citations peuvent ne pas être correctes à 100%.