APA

Institution of Highways and Transportation, . (1991). Traffic congestion on the inter-urban road network. Paper on current policy issues. London: Institution of Highways and Transportation.

Chicago

Institution of Highways and Transportation, . 1991. Traffic congestion on the inter-urban road network. Paper on current policy issues. London: Institution of Highways and Transportation.

Harvard

Institution of Highways and Transportation, . (1991). Traffic congestion on the inter-urban road network. Paper on current policy issues. London: Institution of Highways and Transportation.

MLA

Institution of Highways and Transportation, . Traffic congestion on the inter-urban road network. Paper on current policy issues. London: Institution of Highways and Transportation. 1991.