1. Is Man Interested in His Future?;Boniecki;Internat. J. Psychol.,1977
2. Man's Concern for His Future Still in Doubt;Boniecki;Internat. J. Psychol.,1978
3. The Origins of Knowledge and Imagination;Bronowski,1978
4. Steady-State Economics;Daly,1977
5. On the Social Rate of Discount—The Case for Macro-environmental Policy;Doeleman,1979