Hickman, A. J., & Colwill, D. M. (1982). The estimation of air pollution concentrations from road traffic. Transport and Road Research Laboratory.
Chicago-viite (17. p.)Hickman, A. J., ja D. M. Colwill. The Estimation of Air Pollution Concentrations from Road Traffic. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1982.
MLA-viite (9. p.)Hickman, A. J., ja D. M. Colwill. The Estimation of Air Pollution Concentrations from Road Traffic. Transport and Road Research Laboratory, 1982.
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