Sheppard, David

Valeur universelle exceptionnelle : normes pour le patrimoine mondial naturel

Outstanding universal value : standards for Natural World Heritage

Transboundary protected areas for peace and co-operation : based on the proceedings of workshops held in Bormio (1998) and Gland (2000)

Economic assessment of protected areas : guidelines for their assessment. A draft report

The Kingdom of Tonga : action strategy for managing the environment

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