Permanent committee on road traffic : report on the ... session of the committee.
League of Nations.Communications and Transit Organization.
Geneva : The League,
1930-
Reports no. 1-3 not published separately; no. 4-6 not placed on sale.
Issued with the following documents numbers : 7th sess., May 23-31, 1930 (C.394.M.174.1930.VIII.) 8th sess., May 29-June 1, 1933 (C.384.M.192.1933.VIII.[C.C.T./C.R.84(1).C.C.T./C.R.84(a)(1).]) 11th sess., June 5-July 8, 1937 (C.322.M.217.1937.VIII.[C.C.T./C.R.127(1).]).
Description based on: 7th session (July 1930)
Traffic regulations.
Automobiles
Signals and signaling, Automobile.
Permanent committee on road traffic