Image:Nitrogen Cycle.png
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Nitrogen_Cycle.png (475 × 370 pixel, file size: 127 KB, MIME type: image/png)
This image is a work of an Environmental Protection Agency employee, taken or made during the course of an employee's official duties. As works of the U.S. federal government, all EPA images are in the public domain.
- Source: This is an image of nitrogen cycle taken from this [1] EPA website.
Minor cleanup (text, flat areas) and conversion to PNG by Ilmari Karonen.
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- (del) (cur) 19:46, 20 October 2005 . . Ilmari Karonen (Talk | contribs) . . 475×370 (129,777 bytes) (text hinting)
- (del) (rev) 18:19, 20 October 2005 . . Ilmari Karonen (Talk | contribs) . . 475×370 (133,049 bytes) ({{PD-USGov-EPA}} *'''Source:''' This is an image of nitrogen cycle taken from this [http://www.epa.gov/maia/html/nitrogen.html] EPA website. Minor cleanup (text, flat areas) and conversion to PNG by ~~~.)
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