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. (1982). Progress report on maintenance and operations personnel. Transportation Research Board.
Cita Chicago Style (17a ed.)National Research Council (U.S.). Transportation Research Board. Committee on Maintenance and Operations Personnel y American Association of State Highway and Transportation Officials. Subcommittee on Maintenance. Progress Report on Maintenance and Operations Personnel. Washington, D.C: Transportation Research Board, 1982.
Cita MLA (9a ed.)National Research Council (U.S.). Transportation Research Board. Committee on Maintenance and Operations Personnel y American Association of State Highway and Transportation Officials. Subcommittee on Maintenance. Progress Report on Maintenance and Operations Personnel. Transportation Research Board, 1982.