1. Ministry of Transport, Road Research Laboratory Report LR 357;A review of road traffic noise,1970
2. The noise generated by single vehicles in freely flowing traffic;Lewis;Journal of Sound and Vibration,1973
3. Noise levels from cars and lorries on a 7% rising and descending gradient (Fahrgerauschpegel von Pkw und Lkw an einer 7% igen Steigungs-und Gefallestrecke);Ullrich;Kampf dem Larm,1973
4. Department of the Environment, Transport and Road Research Laboratory Report LR 556;Christie;Urban freight distribution: a study of operations in Putney High Street,1973
5. Department of the Environment, Transport and Road Research Laboratory Report LR 603;Christie;Urban freight distribution: studies of operations in shopping streets at Newbury and Camberley,1973