1. Economics of Natural Resources and the Environment;Pearce,1990
2. Delivering the Circular Economy a Toolkit for Policymakers,2015
3. Evaluation of the Cleaner Technology Programme 1987–1992: Results, Diffusion and Future Activities;Andersen,1997
4. The economics of the coming spaceship earth;Boulding,1966
5. The limits to growth;Meadows,1972