1. Environmental Economics: a survey;Cropper,1991
2. Novum Organum (1621);Bacon,1990
3. The Social Appraisal of Projects: a Text in Cost-Benefit Analysis;Pearce,1981
4. Environmental Economics: a survey;Cropper,1991
5. Comparative Risks of Electricity Product/on: a Critical Survey of the Literature;Cohen,1980