APA (7th ed.) Citation

Hauer, E. (1997). Observational before - after studies in road safety: Estimating the effect of highway and traffic engineering measures on road safety. Pergamon.

Chicago Style (17th ed.) Citation

Hauer, Ezra. Observational Before - After Studies in Road Safety: Estimating the Effect of Highway and Traffic Engineering Measures on Road Safety. Oxford: Pergamon, 1997.

MLA (9th ed.) Citation

Hauer, Ezra. Observational Before - After Studies in Road Safety: Estimating the Effect of Highway and Traffic Engineering Measures on Road Safety. Pergamon, 1997.