National Research Council. (1992). Maintenance management, traffic safety, and snow removal. Washington, DC : National Academy Press.
Citazione stile Chigago Style (17a edizione)National Research Council. Maintenance Management, Traffic Safety, and Snow Removal. Washington, DC : National Academy Press, 1992.
Citatione MLA (9a ed.)National Research Council. Maintenance Management, Traffic Safety, and Snow Removal. Washington, DC : National Academy Press, 1992.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.