Balcombe, R., Rutherford, D., & Walmsley, D. (1973). A parametric model of inter-city passenger transport: An interim report. Transport and Road Research Laboratory.
Chicago Style (17th ed.) CitationBalcombe, R.J, D.J Rutherford, and D.A Walmsley. A Parametric Model of Inter-city Passenger Transport: An Interim Report. Crowthorne, Eng: Transport and Road Research Laboratory, 1973.
MLA (9th ed.) CitationBalcombe, R.J, et al. A Parametric Model of Inter-city Passenger Transport: An Interim Report. Transport and Road Research Laboratory, 1973.
Warning: These citations may not always be 100% accurate.