APA (7th ed.) Citation

Roper, D. H. (1990). Freeway incident management. Transportation Research Board, National Research Council.

Chicago Style (17th ed.) Citation

Roper, David H. Freeway Incident Management. Washington, D.C.: Transportation Research Board, National Research Council, 1990.

MLA (9th ed.) Citation

Roper, David H. Freeway Incident Management. Transportation Research Board, National Research Council, 1990.

Warning: These citations may not always be 100% accurate.