APA
Australian Road Research Board, . (1989). Australian Road Research Board. 27th Regional Symposium, Launceston, Tasmania 1989. Vermont South: Australian Road Research Board.
Chicago
Australian Road Research Board, . 1989. Australian Road Research Board. 27th Regional Symposium, Launceston, Tasmania 1989. Vermont South: Australian Road Research Board.
Harvard
Australian Road Research Board, . (1989). Australian Road Research Board. 27th Regional Symposium, Launceston, Tasmania 1989. Vermont South: Australian Road Research Board.
MLA
Australian Road Research Board, . Australian Road Research Board. 27th Regional Symposium, Launceston, Tasmania 1989. Vermont South: Australian Road Research Board. 1989.