Traffic signs
Subtitle: meeting the environmental challenge.
Contributors: PTRC Summer Meeting., (18th : 1990 : University of Sussex).
Publisher: [PTRC Education and Research Services]
Published: 1990
Place of publication: [London]
Language: eng
Notes: Paper to the PTRC Summer Meeting, Seminar G, University of Sussex, 10-14 Seminar G, University of Sussex, 10-14 September 1990.