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Conference of Allied Ministers of Education International Research Centre on Karst (China) Chine
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Agreement between UNESCO and the Government of the People's Republic of China concerning the establishment and operation of the International Research Centre on Karst in Guilin, China under the auspices of UNESCO
Agreement between UNESCO and the Government of the People's Republic of China concerning the establishment and operation of the International Research Centre on Karst in Guilin, China under the auspices of UNESCO