TY - BOOK AU - United Nations Conference on Environment and Development AU - World Travel & Tourism Council AU - World Tourism Organization AU - Earth Council TI - Agenda 21 for the travel & tourism industry : towards environmentally sustainable development PB - [s.n.] PY - 1996 EP - 78 p. UR - https://ci.nii.ac.jp/ncid/BA34848711 ER -

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