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Dewey Services
Dewey Decimal Classification (DDC) system is the world’s most widely used library classification system.
The 22nd edition of the DDC is available in several convenient formats. The four-volume print edition includes thousands of updates added to the system over the past seven years. The electronic version, WebDewey, enhances the print updates with online delivery that is updated continuously. And the Abridged Edition 14, also available in print and online, is a simplified version perfect for smaller collections.
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