APA

Permanent International Association of, Road Congresses P. & Technical Committee on Roads in Urban Areas. (1990). Reduction of car traffic city centres. Pre-congress report, Marrakesh 1991. Paris: Permanent International Association of.

Chicago

Permanent International Association of, Road Congresses PIARC and Technical Committee on Roads in Urban Areas. 1990. Reduction of car traffic city centres. Pre-congress report, Marrakesh 1991. Paris: Permanent International Association of.

Harvard

Permanent International Association of, Road Congresses P. and Technical Committee on Roads in Urban Areas. (1990). Reduction of car traffic city centres. Pre-congress report, Marrakesh 1991. Paris: Permanent International Association of.

MLA

Permanent International Association of, Road Congresses PIARC and Technical Committee on Roads in Urban Areas. Reduction of car traffic city centres. Pre-congress report, Marrakesh 1991. Paris: Permanent International Association of. 1990.