Waard, D. d. (1996). The measurement of drivers' mental workload. Groningen University, Traffic Research Center.
Lua i Stíl Chicago (17ú heag.)Waard, Dick de. The Measurement of Drivers' Mental Workload. Haren, The Netherlands: Groningen University, Traffic Research Center, 1996.
Lua MLA (8ú heag.)Waard, Dick de. The Measurement of Drivers' Mental Workload. Groningen University, Traffic Research Center, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.