| Title: | Comparison of the triangular, polygonal, and a statistical method of computing grade and tonnage of ore for the Silver Bell Oxide porphyry copper deposit |
| Author: | Hewlett, Richard F. |
| Author: | University of Arizona. College of Mines |
| Author: | Bear Creek Mining Company |
| Author: | United States. Bureau of Mines |
| Note: | U.S. Dept. of Interior, Bureau of Mines, 1970 |
| Link: | page images at HathiTrust |
| No stable link: | This is an uncurated book entry from our extended bookshelves, readable online now but without a stable link here. You should not bookmark this page, but you can request that we add this book to our curated collection, which has stable links. |
| Subject: | Copper ores -- Grading |
| Other copies: | Look for editions of this book at your library, or elsewhere. |
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