Only One Earth – The Care and Maintenance of a Small Planet Autor Barbara Ward Jackson et al. 6 dec 1983 Paperback Preț: 119.12 lei 3-5 săpt.
Losing Ground – Environmental Stress and World Food Prospects Autor Erik P. Eckholm et al. 31 mar 1976 Paperback Preț: 123.98 lei 3-5 săpt.