National Research Council (U.S.). Transportation Research Board. Committee on Maintenance and Operations Personnel & American Association of State Highway and Transportation Officials. Subcommittee on Maintenance. (1986). Progress report on maintenance and operations personnel. Transportation Research Board, National Academy of Sciences.
Citazione stile Chigago Style (17a edizione)National Research Council (U.S.). Transportation Research Board. Committee on Maintenance and Operations Personnel e American Association of State Highway and Transportation Officials. Subcommittee on Maintenance. Progress Report on Maintenance and Operations Personnel. Washington, D.C: Transportation Research Board, National Academy of Sciences, 1986.
Citatione MLA (9a ed.)National Research Council (U.S.). Transportation Research Board. Committee on Maintenance and Operations Personnel e American Association of State Highway and Transportation Officials. Subcommittee on Maintenance. Progress Report on Maintenance and Operations Personnel. Transportation Research Board, National Academy of Sciences, 1986.