Hickman, A. J., Colwill, D. M., & Hughes M. R. (1979). Predicting air pollutant levels from traffic near roads. Transport and Road Research Laboratory.
Lua i Stíl Chicago (17ú heag.)Hickman, A. J., D. M. Colwill, agus Hughes M. R. Predicting Air Pollutant Levels from Traffic Near Roads. Crowthorne, [Eng.]: Transport and Road Research Laboratory, 1979.
Lua MLA (9ú heag.)Hickman, A. J., et al. Predicting Air Pollutant Levels from Traffic Near Roads. Transport and Road Research Laboratory, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.