KatiePiner_CopperSources

My Sources:

__Periodic Table: Copper.__ 28 January 2008. .

__Copper From the Bronze Age to the Fall of Rome.__ 28 January 2008. <[|http://www.unr.edu/sb204/geology/rome.html>.]

__Earth.__ Washington D.C.: National Geographic Nature Society, 1998.

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