1. The unheavenly city revisited;Banfield,1974
2. Methods for the experimenting society;Campbell;Paper presented at the Annual Meeting of the American Psychological Association,1971
3. Assessing the impact of planned social change;Campbell,1976
4. Economic and social development: A process of social learning;Dunn,1971
5. Retracking America: A theory of transactive planning;Friedmann,1973