Dartmouth College's Sources Web site with information on citing sources, example citations, and useful resources.

A directory for journalists and writers featuring a wide range of experts and spokespersons available to speak to the media. Sources helps organizations, companies, universities ...

In academic communities, the ethics of research demand that writers be credited for their work and their writing. Not to do so is to plagiarize, to intentionally or unintentionally ...

This is a guideline discussing the reliability of particular types of sources. The relevant policies on sources are Wikipedia:Verifiability and Wikipedia:

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