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701.
VENEZUELA. MINISTERIO DE ENERGIA Y MINAS. MEMORIA Y CUENTA
ISSN :
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MINISTERIO DE ENERGIA Y MINAS
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VENEZUELA
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702.
VENEZUELA. MINISTERIO DE ENERGIA Y MINAS. QUARTERLY BULLETIN
ISSN :
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MINISTERIO DE ENERGIA Y MINAS
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VENEZUELA
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703.
VEREIN DEUTSCHER KOHLENIMPORTEURE. JAHRESBERICHT
ISSN :
0302-4938
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VEREIN DEUTSCHER KOHLENIMPORTEURE E.V.
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GERMANY
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704.
VIRGINIA INDUSTRIAL DIRECTORY
ISSN :
0882-3219
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VIRGINIA CHAMBER OF COMMERCE
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UNITEDSTATES
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705.
VIRGINIA MINERALS
ISSN :
0042-6652
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DEPARTMENT OF MINES, MINERALS & ENERGY
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UNITEDSTATES
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706.
VIRGINIA. DIVISION OF MINERAL RESOURCES. PUBLICATIONS
ISSN :
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DEPARTMENT OF MINES, MINERALS & ENERGY
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UNITEDSTATES
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707.
VUORITEOLLISUS
ISSN :
0042-9317
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VUORIMIESYHDISTYS-BERGSMANNAFORENINGEN R.Y.
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FINLAND
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708.
VWD - MONTAN
ISSN :
0723-4937
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VEREINIGTE WIRTSCHAFTSDIENSTE GMBH
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GERMANY
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709.
WASHINGTON (STATE). DEPARTMENT OF NATURAL RESOURCES. DIVISION OF GEOLOGY & EARTH RESOURCES. BULLETIN
ISSN :
1045-2982
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DEPARTMENT OF NATURAL RESOURCES
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UNITEDSTATES
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710.
WEST VIRGINIA COAL FACTS
ISSN :
0091-5513
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WEST VIRGINIA COAL ASSN
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UNITEDSTATES
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