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Пишет iv_g (![[info]](http://lj.rossia.org/img/userinfo.gif){kind=small} iv_g)@ 2016-09-18 09:00:00 |
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The World Copper Factbook 2014. 1
http://copperalliance.org/wordpress/w
Chapter 1: Cu Basics
Chapter 2: Copper Resources and Long‐Term Availability of Copper
Chapter 3: Copper Production
http://copperalliance.org/wordpress/w
Chapter 1: Cu Basics
Chapter 2: Copper Resources and Long‐Term Availability of Copper
Chapter 3: Copper Production
