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. (1980). Progress report on maintenance and operations personnel. Transportation Research Board.
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, 1980.
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, 1980.