Almond, G.A. and S. Verba (1963) The Civic Culture. Princeton : Princeton Univ. Press.
2.
Campbell, A., P. Converse, W. Miller, and D. Stokes (1960) The American Voter. New York : John Wiley.
3.
Ferguson, L.C., L.R. Ferguson, and H. Boutourline-Young (1970a) "The political socialization of Italian children in Italy and the Umted States: the Harvard Florence Project ." Prepared for the Sixty-Sixth Annual Meeting of the American Political Science Association, Los Angeles , September.
4.
--- ( 1970b) "An attempt to correlate physical characteristics with political attitudes." Prepared for the Eighth World Congress of the International Political Science Association, Munich.