Dyfyniad APA

(2014). Copper 2013: International Copper Conference (1a. ed.). The Chilean Institute of Mining Engineers.

Dyfyniad Arddull Chicago

Copper 2013: International Copper Conference. 1a. ed. Santiago: The Chilean Institute of Mining Engineers, 2014.

Dyfyniad MLA

Copper 2013: International Copper Conference. 1a. ed. The Chilean Institute of Mining Engineers, 2014.

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