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| Dew·ey dec·i·mal sys·tem or Dew·ey dec·i·mal clas·si·fi·ca·tion |
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| Definition: |
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number system for classifying library books: a system of classifying library books that divides them into ten main classes, divided in turn into categories with three-digit numbers and subcategories with numbers after a decimal point
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| [After Melvil Dewey] |
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