1. Social Trends and Electoral Behaviour
2. ALFORD, R. (1963) Party and Society. Chicago: Rand McNally.
3. ALLARDT, E. and Y. LITTUNEN [eds.] (1964) Cleavages, Ideologies and Party Systems. Helsinki: Westermarck Society.
4. ALLARDT, E. and S. ROKKAN [eds.] (1970) Mass Politics. New York: Free Press.