Dyfyniad APA

Colwill, D. M., Hickman, A. J., & Waterfield, V. H. (1983). Atmospheric pollution from vehicle emissions: Measurements near the tunnel portal at London (Heathrow) Airport. Transport and Road Research Laboratory.

Dyfyniad Arddull Chicago

Colwill, D. M., A. J. Hickman, and Victoria H. Waterfield. Atmospheric Pollution from Vehicle Emissions: Measurements Near the Tunnel Portal at London (Heathrow) Airport. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1983.

Dyfyniad MLA

Colwill, D. M., et al. Atmospheric Pollution from Vehicle Emissions: Measurements Near the Tunnel Portal at London (Heathrow) Airport. Transport and Road Research Laboratory, 1983.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.