Hickman, A. J., & Colwill, D. M. (1982). The estimation of air pollution concentrations from road traffic. Transport and Road Research Laboratory.
Lua i Stíl Chicago (17ú heag.)Hickman, A. J., agus D. M. Colwill. The Estimation of Air Pollution Concentrations from Road Traffic. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1982.
Lua MLA (9ú heag.)Hickman, A. J., agus D. M. Colwill. The Estimation of Air Pollution Concentrations from Road Traffic. Transport and Road Research Laboratory, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.