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ckan_admin 建立了数据集Atwood, J.M. 1851. Map Of The United States, Canada, Mexico, Central America and the West Indies. 10年前

Atwood, J.M. 1851. Map Of The United States, Canada, Mexico, Central America and the West Indies.

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ECAI Clearinghouse

In the 1990's ECAI developed the ECAI Metadata Clearinghouse, a system for managing and cataloging spatio-temporal cultural data. ECAI's Metadata Clearinghouse includes records... 读取更多

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