Harper, D. (1985). Coal Mining in Vigo County, Indiana: (With summary.). State of Indiana, Dep. of Natural Resources, Geological Survey.
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Chicago Style (17th ed.) Citation
Harper, Denver. Coal Mining in Vigo County, Indiana: (With Summary.). Bloomington, Indiana: State of Indiana, Dep. of Natural Resources, Geological Survey, 1985.
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MLA引文
Harper, Denver. Coal Mining in Vigo County, Indiana: (With Summary.). State of Indiana, Dep. of Natural Resources, Geological Survey, 1985.
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