Ellis, R. D., & Herbsman, Z. J. (1996). Illumination guidelines for nighttime highway work. Transportation Research Board, National Research Council.
Chicago (17e ed.) BronvermeldingEllis, Ralph D., en Zohar J. Herbsman. Illumination Guidelines for Nighttime Highway Work. Washington, D.C: Transportation Research Board, National Research Council, 1996.
MLA (9e ed.) BronvermeldingEllis, Ralph D., en Zohar J. Herbsman. Illumination Guidelines for Nighttime Highway Work. Transportation Research Board, National Research Council, 1996.
Let op: Deze citaties zijn niet altijd 100% accuraat.