National Research Council (U.S.). Transportation Research Board. Committee on Maintenance and Operations Personnel. (1988). Progress report on maintenance and operations personnel. Transportation Research Board, National Research Council.
Cita Chicago Style (17a ed.)National Research Council (U.S.). Transportation Research Board. Committee on Maintenance and Operations Personnel. Progress Report on Maintenance and Operations Personnel. Washington, D.C: Transportation Research Board, National Research Council, 1988.
Cita MLA (9a ed.)National Research Council (U.S.). Transportation Research Board. Committee on Maintenance and Operations Personnel. Progress Report on Maintenance and Operations Personnel. Transportation Research Board, National Research Council, 1988.