(1978). Highway design in developing countries: Proceedings of the Seminar on highway design in developing countries held on Tuesday 11 and Wednesday 12 July 1978 during the PTRC Summer Annual Meeting at the University of Warwick, England. Warwick: Planning and Transport Research and Computation PTRC Education and Research Services.
Παραπομπή Chicago StyleHighway Design in Developing Countries: Proceedings of the Seminar On Highway Design in Developing Countries Held On Tuesday 11 and Wednesday 12 July 1978 During the PTRC Summer Annual Meeting At the University of Warwick, England. Warwick: Planning and Transport Research and Computation PTRC Education and Research Services, 1978.
Παραπομπή MLAHighway Design in Developing Countries: Proceedings of the Seminar On Highway Design in Developing Countries Held On Tuesday 11 and Wednesday 12 July 1978 During the PTRC Summer Annual Meeting At the University of Warwick, England. Warwick: Planning and Transport Research and Computation PTRC Education and Research Services, 1978.