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Bituminous coal (view source)

Revision as of 12:06, April 17, 2009

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==Further reading==
 
==Further reading==
 
* Freese, Barbara. ''Coal: A Human History'' (2003)   
 
* Freese, Barbara. ''Coal: A Human History'' (2003)   
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[[Category:Mining]]
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[[Category:Coal mining]]
 
[[category:energy]]
 
[[category:energy]]
RJJensen
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