Dewey Decimal Numbers: Massachusetts
General information about Massachusetts is found in 974.4. Knowing the Dewey Decimal number for a county or a series of counties within a state makes it easier for a researcher to browse the shelves. The following chart lists Massachusetts' counties in alphabetical order followed by their Dewey Decimal number.
| Barnstable | 974.492 | Franklin | 974.422 | Norfolk | 974.47 |
| Berkshire | 974.41 | Hampden | 974.426 | Plymouth | 974.482 |
| Bristol | 974.485 | Hampshire | 974.423 | Suffolk | 974.46 |
| Dukes | 974.494 | Middlesex | 974.44 | Worcester | 974.43 |
| Essex | 974.45 | Nantucket | 974.497 |
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Modified: 31 Jul 2008