File:Coal mining.png
Coal_mining.png (646 × 335 pixels, file size: 12 KB, MIME type: image/png)
Summary
| Title / Description
|
Diagram of various coal mining methods |
|---|---|
| Author(s)
|
Stephen Greb |
| Copyright holder
|
Stephen Greb and Kentucky Geological Survey See below for license/re-use information. |
| Source
|
http://www.uky.edu/KGS/coal/coal_mining.htm |
| Date created
|
Don't know |
| Country of first publication
|
United States |
| Notes
|
See Talk page of this image file for documentation of the permission to use this image. |
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|
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| Using this image on CZ
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Licensing/Copyright status
This media, Coal mining.png, is copyrighted, all rights reserved.
Use of this image for any purpose requires the express written permission of the copyright holder.
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Notice of CC-by-sa incompatibility
Text on the Citizendium is licensed under the Creative Commons Attribution ShareAlike licence.
This media may not be used under those or closely similar terms without separate permission of the copyright holder, or the user's own fair use determination.
This image's copyright information has been verified by Drew R. Smith on 08:32, 29 August 2009 (UTC).The copyright information can be found here
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:55, 11 March 2022 | | 646 × 335 (12 KB) | Maintenance script (talk | contribs) | == Summary == Importing file |
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File usage
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