APA (7e ed.) Bronvermelding

Kraay, J. H., & Dijkstra, A. (1989). Safety aspects of urban infrastructure: From traffic humps to integrated urban planning. Institute for Road Safety Research SWOV, The Netherlands.

Chicago (17e ed.) Bronvermelding

Kraay, J. H., en A. Dijkstra. Safety Aspects of Urban Infrastructure: From Traffic Humps to Integrated Urban Planning. Leidschendam: Institute for Road Safety Research SWOV, The Netherlands, 1989.

MLA (9e ed.) Bronvermelding

Kraay, J. H., en A. Dijkstra. Safety Aspects of Urban Infrastructure: From Traffic Humps to Integrated Urban Planning. Institute for Road Safety Research SWOV, The Netherlands, 1989.