Transport and Road Research Laboratory. (1981). Social aspects of transport: How to use social research in transport policy making. Transport and Road Research Laboratory.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Transport and Road Research Laboratory. Social Aspects of Transport: How to Use Social Research in Transport Policy Making. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1981.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)Transport and Road Research Laboratory. Social Aspects of Transport: How to Use Social Research in Transport Policy Making. Transport and Road Research Laboratory, 1981.
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