【资料名称及年份】:美国2011年矿产资源统计年鉴
【文件格式】:PDF
【页数/文件数/大小】:200页,单个文件,3.7MB左右
【数据来源】:美国地质调查局 USGS
【复制性】:可以,但是纸质版需要从USGS购买。
Work Cited: U.S. Geological Survey, 2011, Mineral commodity summaries 2011: U.S. Geological Survey, 198 p. http://minerals.usgs.gov/minerals/pubs/mcs/2011/mcs2011.pdf
所有版权归美国地质调查局所有,只得用于简单的学术交流。
All rights were reserved by USGS, so the yearbook was only for academic communication. If you want to cite any contents in the yearbook to write a research paper, please use formal academic citations to cite the source. Thanks for your cooperation.
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