Kraay, J. H. (1985). An international study on the calibration of traffic conflict techniques. Institute for Road Safety Research SWOV, The Netherlands.
Citazione stile Chigago Style (17a edizione)Kraay, J. H. An International Study on the Calibration of Traffic Conflict Techniques. Leidschendam: Institute for Road Safety Research SWOV, The Netherlands, 1985.
Citatione MLA (9a ed.)Kraay, J. H. An International Study on the Calibration of Traffic Conflict Techniques. Institute for Road Safety Research SWOV, The Netherlands, 1985.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.