books.google.com - Extractive Metallurgy of Rare Earths compiles information from scattered sources that is often available only to specialists. It provides a complete and usable survey of the rare earth resources, extraction, and production of numerous end products that translates to both laboratory and industrial settings....https://books.google.com/books/about/Extractive_Metallurgy_of_Rare_Earths.html?id=F0Bte_XhzoAC&utm_source=gb-gplus-shareExtractive Metallurgy of Rare Earths