An Entrepreneur in Mining in North and South America, 1930s to 1990s; Oral History Transcript ] 1995

Subjects: Orr Engineering and Chemical Company Spectrograph Mining engineers -- Interviews Mines and mineral resources -- West (U.S.) Diamond mines and mining -- Brazil Notes: This is an OCR reprint. There may be numerous typos or missing text. There are no illustrations or indexes. When you buy the General Books edition of this book you get free trial access to Million-Books.com where you can select from more than a million books for free. You can also preview the book there.