National Research Council (U.S.). Highway Research Board. (1952). Highway sufficiency ratings: Presented at the 31st annual meeting, January 1952. The Board.
Chicago-Zitierstil (17. Ausg.)National Research Council (U.S.). Highway Research Board. Highway Sufficiency Ratings: Presented at the 31st Annual Meeting, January 1952. Washington, D.C: The Board, 1952.
MLA-Zitierstil (9. Ausg.)National Research Council (U.S.). Highway Research Board. Highway Sufficiency Ratings: Presented at the 31st Annual Meeting, January 1952. The Board, 1952.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.