Records and texts relating to the fourth General conference on communications and transit, held at Geneva, from 12th to 24th October, 1931 ...
Conference on Freedom of Communications and Transit(4th :1931 :Geneva)
League of Nations.Organisation for Communications and Transit.
Geneva : League of Nations,
1931.
At head of title:  Official no.: C. 977. M. 542. 1931. VIII.  ... League of nations. Organisation for communications and transit.
I. 1. Minutes of the first plenary meeting of the conference. 2. Minutes of the Plenary committee for the examination of the expediency from an economic and social standpoint of fixing movable feasts and of simplifying the Gregorian calendar. 3. Minutes of the second and third plenary meetings of the conference. Annexes. -- II. Minutes of the fourth to the thirteenth plenary meetings of the conference. Annexes.
Communication and traffic
Calendar.