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2by World Wide Fund for Nature, Hamilton, A.C., Shengji, Pei, Kessy, J., Khan, Ashiq A., Lagos-Witte, S., Shinwari, Z.K.periodical issue bibliotecaUNESCO
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3by National Training Workshop on Application of Ethnobotany to Conservation and Community Development, Chitwan, Nepal, 1997, International Centre for Integrated Mountain Development, King Mahendra Trust for Nature Conservation (Nepal), Tribhuvan University (Nepal). Central Dept of Botany, Shrestha, K.K., Jha, P.K., Shengji, Pei, Rastogi, Ajay, Rajbhandary, S., Joshi, M.book bibliotecaUNESCO