http://book.klll.cc/ebooks/subject/35304.opds 2025-08-08T14:42:01Z Books about Rare earths (sorted by popularity) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-08T14:42:01Z https://book.klll.cc/ebooks/62923.opds The Rare Earths: Their Occurrence, Chemistry, and Technology Stanley Isaac Levy