APA
La Prevention Routiere Internationale P., . (1998). Cost-effectiveness of road safety work and measures, Luxembourg, 26-27 November 1997. Bertrange: La Prevention Routiere Internationale, PRI.
Chicago
La Prevention Routiere Internationale PRI, . 1998. Cost-effectiveness of road safety work and measures, Luxembourg, 26-27 November 1997. Bertrange: La Prevention Routiere Internationale, PRI.
Harvard
La Prevention Routiere Internationale P., . (1998). Cost-effectiveness of road safety work and measures, Luxembourg, 26-27 November 1997. Bertrange: La Prevention Routiere Internationale, PRI.
MLA
La Prevention Routiere Internationale PRI, . Cost-effectiveness of road safety work and measures, Luxembourg, 26-27 November 1997. Bertrange: La Prevention Routiere Internationale, PRI. 1998.