Fig_7-2_Coal_Production.jpg
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Summary
| Description |
English:
US Coal production since 1949
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| Date | |
| Source | US Energy Information Administration |
| Author | US Energy Information Administration |
Licensing
|
This image is a work of a
United States Department of Energy
(or predecessor organization) employee, taken or made as part of that person's official duties. As a
work
of the
U.S. federal government
, the image is in the
public domain
.
Please note that national laboratories operate under varying licences and some are not free . Check the site policies of any national lab before crediting it with this tag.
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Original upload log
Transferred from en.wikipedia to Commons by Sreejithk2000 using CommonsHelper .
The original description page was
here
. All following user names refer to en.wikipedia.
- 2008-12-15 00:12 Plazak 648×501× (233054 bytes)