http://book.klll.cc/ebooks/subject/23113.opds 2025-11-17T22:07:17Z Books about Machine design Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-17T22:07:17Z https://book.klll.cc/ebooks/39033.opds An Introduction to Machine Drawing and Design David Allan Low