http://book.klll.cc/ebooks/subject/38913.opds 2025-08-17T18:55:10Z Books about Electromagnetic theory (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 2025-08-17T18:55:10Z https://book.klll.cc/ebooks/70453.opds Clerk Maxwell's electromagnetic theory H. A. Lorentz