The World Commission on Protected Areas 2nd Southeast Asia Regional Forum, Pakse, Lao PDR, vol.1 : executive summary, vol.2 : papers presented 2000
A global overview of wetland and marine protected areas on the World Heritage list 1997 Levy, Renée Ferster | Sigaty, Todd | Thorsell, J. W. |
A global overview of forest protected areas on the World Heritage list 1997 Sigaty, Todd | Thorsell, J. W. |