Waard, D. d. (1996). The measurement of drivers' mental workload. Groningen University, Traffic Research Center.
Čikaški stil citiranja (17. izdanje)Waard, Dick de. The Measurement of Drivers' Mental Workload. Haren, The Netherlands: Groningen University, Traffic Research Center, 1996.
MLA način citiranja (8. izdanje)Waard, Dick de. The Measurement of Drivers' Mental Workload. Groningen University, Traffic Research Center, 1996.
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