Não informado. (1963). Highway research record. National Research Council, Highway Research Board.
Chicago (17e ed.) BronvermeldingNão informado. Highway Research Record. Washington: National Research Council, Highway Research Board, 1963.
MLA (8e ed.) BronvermeldingNão informado. Highway Research Record. National Research Council, Highway Research Board, 1963.
Let op: Deze citaties zijn niet altijd 100% accuraat.