1. Thomas and Znaniecki (1918: 68)68
2. The influence of the group upon association and thought.
3. Social pressure in public and private situations.
4. Charters, W. W. and T. M. Newcomb1958 "Some attitudinal effects of experimentally increased salience in amembership group." Pp. 276-280 in E. Maccoby et al. (eds.) Readings inSocial Psychology. New York: Holt, Rinehart & Winston.ChartersSome attitudinal effects of experimentally increased salience in a membership group276Readings in Social Psychology1958