1. Planning, Prediction and Policymaking in Foriegn Affairs: Theory and Practice;Rothstein,1972
2. Image of the Future I;Polak,1961
3. World Dynamics: Social Feedback May Give Hope for the Future;Oerlemans;Nature,1972
4. Projecting Whole Body Future Patterns—the Field Anomaly Relaxation (FAR) Method;Rhyne,1971
5. The Year 2000;Kahn,1967