(1892). Transactions of the Institution of Mining and Metallurgy-Section B: : applied earth science. London: Institution of Mining and Metallurgy.
Παραπομπή Chicago StyleTransactions of the Institution of Mining and Metallurgy-Section B: : Applied Earth Science. London: Institution of Mining and Metallurgy, 1892.
Παραπομπή MLATransactions of the Institution of Mining and Metallurgy-Section B: : Applied Earth Science. London: Institution of Mining and Metallurgy, 1892.
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