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81
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82
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83
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84Published 1975Subjects: “...Coal Kentucky....”
Book -
85Published 1981Subjects: “...Coal....”
Book -
86
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87
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88
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89
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90
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91
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92
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93Published 1989Subjects: “...Coal Sampling....”
Book -
94Published 1977Subjects: “...Coal, Pulverized....”
Government Document Book -
95
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96Published 1977Subjects: “...Coal gasification, Underground....”
Government Document Book -
97
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98
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99Published 1977Subjects: “...Coal liquefaction....”
Government Document Book -
100Published 1976Subjects: “...Coal Carbonization....”
Government Document Book