Convention sur l'unification de la signalisation routière = Convention concerning the unification of road signals.
European Conference on Road Traffic(1931 :Geneva, Switzerland)
League of Nations.
Genève : [League of Nations],
1931.
Cover title.
At head of title :  No officiel : C.231.M.99.1931.VIII. Genève, le 10. avril 1931. Société des Nations. Conférence européenne sur la circulation routière (Genève, 16-30 mars 1931) ... League of Nations. European Conference on Road Traffic (Geneva, March 16th-30th, 1931)
"Explanatory note with reference to admissible variations in the colours shown in the tables accompanying the annex", in French and English (2 p.) laid in. (C.231 (a) M.99 (a) 1931. VIII. Série de publications ... 1931. VIII. 7(a)
Traffic regulations.
Automobiles
Signals and signaling, Automobile.