1. Our common future;WCED,1987
2. State of the world: A Worldwatch Institute report on progress toward a sustainable society;Brown,1995
3. Pathway to sustainability: assessing our progress;NRTEE,1993
4. Structural adjustments: the environment and sustainable development;Reed,1997
5. Cannibals with forks: the triple bottom line of 21st century business;Elkington,1997