Wigan, M. R. (1979). Indicators for the analysis, monitoring and planning of freight policies and activities. Australian Road Research Board.
芝加哥风格引文Wigan, M. R. Indicators for the Analysis, Monitoring and Planning of Freight Policies and Activities. Vermont South, Vic.: Australian Road Research Board, 1979.
MLA引文Wigan, M. R. Indicators for the Analysis, Monitoring and Planning of Freight Policies and Activities. Australian Road Research Board, 1979.
警告：这些引文格式不一定是100％准确.