Copper. (2006, October 17). Retrieved May 31, 2025, from http://www.essayworld.com/essays/Copper/54105
"Copper." Essayworld.com. Essayworld.com, 17 Oct. 2006. Web. 31 May. 2025. <http://www.essayworld.com/essays/Copper/54105>
"Copper." Essayworld.com. October 17, 2006. Accessed May 31, 2025. http://www.essayworld.com/essays/Copper/54105.
"Copper." Essayworld.com. October 17, 2006. Accessed May 31, 2025. http://www.essayworld.com/essays/Copper/54105.