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শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিInternational Workshop 'Recent Developments in Road Safety Research' Hague, Netherlands, Stichting Wetenschappelijk Onderzoek Verkeersveiligheid, J. H. Kraay, এবং G. C. Ederveen. Proceedings of the International Workshop 'Recent Developments in Road Safety Research', Koninklijk Conservatorium, the Hague, 19 November 1986. Leidschendam: Institute for Road Safety Research SWOV, 1987.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিInternational Workshop 'Recent Developments in Road Safety Research' Hague, Netherlands, et al. Proceedings of the International Workshop 'Recent Developments in Road Safety Research', Koninklijk Conservatorium, the Hague, 19 November 1986. Institute for Road Safety Research SWOV, 1987.