Wiki.GIS.com:Citation needed

The "citation needed" link you just followed was placed there because somebody feels that the preceding statement needs an inline citation. If you cannot find a source for the statement, exercise extra caution when using the flagged information.


 * How to improve a passage that has a "citation needed" flag


 * If the statement violates wiki.gis.com's policy on biographies of living persons, delete the statement immediately.
 * If you can provide a source to back up the statement, please be bold, add a citation, and remove the tag.
 * To learn how to change or discuss articles, visit wiki.gis.com's editing tutorial.


 * How to cite sources

Verifiability is one of wiki.gis.com's most fundamental policies.
 * Reliable sources explains what constitutes a reliable source for wiki.gis.com
 * Citing sources - How and why to cite sources on wiki.gis.com
 * Footnotes - How to use footnotes on wiki.gis.com
 * Citation templates - Standardized formatting for citations


 * How to produce the "citation needed" flag


 * To learn more about the "citation needed" template itself, including when and how to use it, see Template:Fact.