(Air Transport Association of America) The incidence of Air Travel Among the General Public, 1973. Princeton: Gallup, 1973.
2.
(Department of the Environment) Highway Statistics 1971. London: Her Majesty's Stationary Office, 1973.
3.
Galtung, Johan: "Foreign Policy Opinion as a Function of Social Position", Journal of Peace Research, vol. 1, no. 3/4, 1964, pp. 206-31.
4.
- "Norway in the World Community", in Natalie R. Ramsøy, ed.: Norwegian Society. Oslo : Norwegian Universities Press, 1974.
5.
— and Nils Petter Gleditsch : "Norge i verdenssamfunnet", i Natalie Ramsøy og Mariken Vaa: Det norske samfunn, 2nd ed., vol. II. Oslo: Gyldendal, 1975 (2nd ed. of the previous reference, in Norwegian).
6.
Gleditsch, Nils Petter: "Time differences and international interaction", Cooperation and Conflict, vol. 9, no. 1. 1974, pp 35-51.
7.
Hillman, Mayer (with Irwin Henderson and Anne Whalley): "Personal Mobility and Transport Policy", PEP Broadsheet, no. 542, June 1973.
8.
Illich, Ivan: Energy and Equity, London: Calder and Boyars, 1974 (Danish Edition: Fartens tyranni. Energi og Forcleling, København: Reitzel , 1974.)
9.
(International Air Transport Association) World Air Transport Stntistics, no. 16, 1971. Geneva: IATA, 1972.
10.
- Agreeirtg Fares and Rates, Geneva: IATA, 1973.
11.
(International Civil Aviation Organization) "Traffic 1961-71", Digest of Statistics, no. 169. Montreal: ICAO, 1972.
12.
— "Survey of International Air Transport Fares and Rates, September 1973", circular 123-AT/33. Montreal: ICAO, 1974.
13.
Lansing, John B. and Dwight M.Blood: The Changing Travel Market. Ann Arbor: Survey Research Center, University of Michigan, 1964.
14.
Linder, Staffan B.: Den rastlösa velfärdsmänniskan. Tidsbrist i Överflod. En ekonomisk studie. Stockholm, Bonnier, 1969 (English language version: The Harried Leisure Class.)
15.
Pillai, K.G.J.: The Air Net: The Case Against the World Aviation Cartel. NY: Grossman, 1969.
16.
Rosenberg, Arne: Air Travel within Europe. Stockholm: National Swedish Consumer Council, 1970.
17.
- Air Travel Across the North Atlantic. Stockholm: National Swedish Consumer Council, 1972.
18.
Schwarz, Barry: "Waiting, Exchange and Power: The Distribution of Time in Social Systems ", American Journal of Sociology, vol. 79. no. 4, January 1974, pp. 841-870.
19.
Schumacher, E.F.: Small is Beautiful. A Study of Economics as if People Mattered. London: Blond and Briggs, 1973
20.
Shurcliffe, William A.: SST and the Sonic Boom Handbook. NY: Ballantine, 1970.
21.
Smeed, R.J.: "Traffic Studies and Urban Congestion", Journal of Transportation Economics and Policy, January 1968.