Govt Data Sources - 搜索图片

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pinterest.com
These free data sets are great public sources of …
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marketing91.com
Sources of Data - Types and Ways of Collecting Data | Marketing91
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opendatasources.com
Data.gov – (almost) all government data in one plac…
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studiousguy.com
Sources of Data Collection: Primary & Secondary – StudiousGuy

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commonslibrary.org
Guide to Publicly Available Data Sources - The Commons
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data.gov
User Guide - Data.gov
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data.gov
User Guide - Data.gov
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policedatainitiative.org
DATA.gov (federal open data repository) - Police Data Initiative

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