1. (1988). Attitudes, personality, and behavior. Chicago, IL: The Dorsey Press.
2. & (1980). Understanding attitudes and predicting social behavior. Englewood Cliffs, NJ: Prentice-Hall.
3. American Psychological Association. (1994) Publication manual of the American Psychological Association (4th. ed.). Washington, DC: American Psychological Association.
4. & (1990). Consumer psychology. In & (Eds.), Annual review of psychology (Vol. 41). Palo Alto, CA: Annual Reviews Inc.
5. (1984). Liberalism and conservatism: The nature and structure of social attitudes. Hillsdale, NJ: Erlbaum.