Finlay, J. R. (1910). The cost of mining: An exhibit of the results of important mines throughout the world. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Finlay, James Ralph. The Cost of Mining: An Exhibit of the Results of Important Mines Throughout the World. New York: McGraw-Hill, 1910.
Lua MLA (9ú heag.)Finlay, James Ralph. The Cost of Mining: An Exhibit of the Results of Important Mines Throughout the World. McGraw-Hill, 1910.
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