1. The welfare interpretation of secular trends in national income and product;Abramovitz,1959
2. AIPO Poll (December 1970) Reported in San Francisco Chronicle, January 14, 1971.
3. Unstable America;Bell;Encounter,1970
4. Berkowitz, L. (1971) Frustrations, comparisons, and other sources of emotion arousal as contributors to social unrest. Multilith.
5. The challenge of response sets;Block,1965