Vaughan, R. G., Lukin, J., & Pettigrew, K. (1977). Motorcycle crashes: A level two study. Traffic Accident Research Unit, Dept. of Motor Transport.
Citace podle Chicago (17th ed.)Vaughan, Rodney G., Jill Lukin, a Keith Pettigrew. Motorcycle Crashes: A Level Two Study. [Sydney]: Traffic Accident Research Unit, Dept. of Motor Transport, 1977.
Citace podle MLA (8th ed.)Vaughan, Rodney G., et al. Motorcycle Crashes: A Level Two Study. Traffic Accident Research Unit, Dept. of Motor Transport, 1977.
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