OCLC，Online Computer Library Center，Inc.，即（），总部设在美国的俄亥俄州，是世界上最大的提供文献信息服务的机构之一，它是一个非赢利的组织，以推动更多的人检索世界上的信息、实现资源共享并减少使用信息的费用为主要目的。
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