APA
Council of Europe, Studies and Texts Series 16, . (1990). Improving traffic and quality of life in metropolitan areas. Conference, Göteborg, 12-14 June 1990. Working documents and conclusions. Strasbourg: Council of Europe.
Chicago
Council of Europe, Studies and Texts Series 16, . 1990. Improving traffic and quality of life in metropolitan areas. Conference, Göteborg, 12-14 June 1990. Working documents and conclusions. Strasbourg: Council of Europe.
Harvard
Council of Europe, Studies and Texts Series 16, . (1990). Improving traffic and quality of life in metropolitan areas. Conference, Göteborg, 12-14 June 1990. Working documents and conclusions. Strasbourg: Council of Europe.
MLA
Council of Europe, Studies and Texts Series 16, . Improving traffic and quality of life in metropolitan areas. Conference, Göteborg, 12-14 June 1990. Working documents and conclusions. Strasbourg: Council of Europe. 1990.