Board, N. R. C. T. R. (1992). Safety research: Heavy vehicles, information systems and crash studies and methods. Washington, DC : National Academy Press.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Board, National Research Council. Transportation Research. Safety Research: Heavy Vehicles, Information Systems and Crash Studies and Methods. Washington, DC : National Academy Press, 1992.
MLA -ийн эшлэл (9 дэх хэвлэлт)Board, National Research Council. Transportation Research. Safety Research: Heavy Vehicles, Information Systems and Crash Studies and Methods. Washington, DC : National Academy Press, 1992.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.