http://book.klll.cc/ebooks/author/53612.opds 2025-09-08T02:51:39Z Books by Smith, Sigurd (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 2025-09-08T02:51:39Z https://book.klll.cc/ebooks/66046.opds Søren Hjorth: Inventor of the Dynamo-electric Principle Sigurd Smith