APA (7th ed.) Citation

Graham, J. L., & Hardwood, D. W. (1982). Effectiveness of clear recovery zones. Transportation Research Board.

Chicago Style (17th ed.) Citation

Graham, Jerry L., and Douglas W. Hardwood. Effectiveness of Clear Recovery Zones. Washington, D.C: Transportation Research Board, 1982.

MLA (9th ed.) Citation

Graham, Jerry L., and Douglas W. Hardwood. Effectiveness of Clear Recovery Zones. Transportation Research Board, 1982.