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发表于2024-11-28
North American Industry Classification System pdf epub mobi txt 电子书 下载 2024
North American Industry Classification System (NAICS) is an industry classification system that groups establishments into industries based on the activities in which they are primarily engaged. Contains a conprehensive system covering the entire field of economic activities, producing and nonproducing.
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North American Industry Classification System pdf epub mobi txt 电子书 下载 2024