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Date of Publication and Last Update

Things to Consider:

  • When was the information created, published, or compiled?

[sample publications] Most information sources indicate a date of publication. If a source provides no information on when it was created or published, it may not be appropriate to use if timeliness is important for your topic.
  • Is the information regularly updated and how often?
[animated clock] Certain information sources like the National Debt Clock on the web are updated continuously or daily.
Other information sources are updated at regular intervals, such as monthly or annually. [book cover - Economic Report of the President]

Chapter 5, Page 8

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