http://book.klll.cc/ebooks/subject/37688.opds 2025-08-09T17:53:18Z Books about Motion study (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 2025-08-09T17:53:18Z https://book.klll.cc/ebooks/67908.opds Fatigue study : the elimination of humanity's greatest unnecessary waste. A first step in motion study Lillian Moller Gilbreth and Frank B. Gilbreth