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Simple citation
Summer School of Practical Mining, School of Mines, Columbia College, N. Y., Dickerson Mine. Retrieved from https://doi.org/doi:10.7282/T3TT4RDT
MLA citation
Summer School of Practical Mining, School of Mines, Columbia College, N. Y., Dickerson Mine. 1880. RUcore: https://doi.org/doi:10.7282/T3TT4RDT

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