Lay, M. G. (1981). Source book for Australian roads. Australian Road Research Board.
Chicago (17e ed.) BronvermeldingLay, M. G. Source Book for Australian Roads. Vermont South, Vic.: Australian Road Research Board, 1981.
MLA (9e ed.) BronvermeldingLay, M. G. Source Book for Australian Roads. Australian Road Research Board, 1981.
Let op: Deze citaties zijn niet altijd 100% accuraat.