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Source

Proceedings of the International Study Conference on Classification for Information Retrieval, held at Beatrice Webb House, Dorking, England, 13.-17.5.1957

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Footnote

Derived from the article of similar title in the ISKO Encyclopedia of Knowledge Organization Version 1.1 (= 1.0 plus details on electrophones and Wikipedia); version 1.0 published 2019-01-17, this version 2019-05-29. Article category: KOS, specific (domain specific). The author would like to thank the anonymous reviewers for their useful comments, as well as the editor, Professor Birger Hjørland, for all of his insightful comments and ideas.