National Research Council (U.S.). Transportation Research Board. (1992). Maintenance research problem statements. Transportation Research Board.
Chicago-Zitierstil (17. Ausg.)National Research Council (U.S.). Transportation Research Board. Maintenance Research Problem Statements. Washington, D.C: Transportation Research Board, 1992.
MLA-Zitierstil (9. Ausg.)National Research Council (U.S.). Transportation Research Board. Maintenance Research Problem Statements. Transportation Research Board, 1992.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.