Colwill, D. M., Middleton, D. R., & Butler, J. D. (1979). A Gaussian plume dispersion model applicable to a complex motorway interchange. Transport and Road Research Laboratory.
Chicago Style (17th ed.) CitationColwill, D. M., D. R. Middleton, and J. D. Butler. A Gaussian Plume Dispersion Model Applicable to a Complex Motorway Interchange. Crowthorne, [Eng.]: Transport and Road Research Laboratory, 1979.
MLA (9th ed.) CitationColwill, D. M., et al. A Gaussian Plume Dispersion Model Applicable to a Complex Motorway Interchange. Transport and Road Research Laboratory, 1979.
Warning: These citations may not always be 100% accurate.