| Registros del 1 al 5 de 5 encontrados |
1.- Coal licensing and production tax regimes
Walker, Simon
London: IEA Coal Research, 1998
CCC( Clean Coal Centre )
I/16-5-37
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2.- Comparative underground coal mining methods
Walker, Simon
London: IEA Coal Research, 1996
IEA Coal Research
I/6-5-16
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3.- Geology and economics of major world coalfields: draft
Walker, Simon
London: IEA Coal Research, 1992
III/1-7-43
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4.- Major coalfields of the world
Walker, Simon
London: IEA Coal Research, 1993
IEA Coal Research
IV/9-4-64
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5.- Major coalfields of the world
IEA Coal Research, ed.; Walker, Simon
London: IEA, 2000
IEA Coal Research
I/16-5-53
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