http://book.klll.cc/ebooks/subject/20895.opds2025-08-22T21:01:01ZBooks about Friction (sorted by popularity)Free eBooks since 1971.Project Gutenberghttps://book.klll.ccwebmaster@gutenberg.orghttps://book.klll.cc/gutenberg/favicon.ico2512025-08-22T21:01:01Zhttps://book.klll.cc/ebooks/35001.opdsFriction, Lubrication and the Lubricants in HorologyW. T. Lewis