Clark, William2022-02-231997Clark, William C. 1997. “Brundtland + 10, Rio + 5.” Environment : Science and Policy for Sustainable Development 39 (7).https://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37370873en-USBrundtland + 10, Rio + 5Journal Article2022-02-23Clark, W.C. 1997, "Brundtland plus 10, Rio plus 5", Environment, vol. 39, no. 7, pp. 1.