http://book.klll.cc/ebooks/author/55747.opds2025-08-19T20:49:33ZBooks by Cooley, M. S. (Maxwell Stephens) (sorted by popularity)Free eBooks since 1971.Project Gutenberghttps://book.klll.ccwebmaster@gutenberg.orghttps://book.klll.cc/gutenberg/favicon.ico2512025-08-19T20:49:33Zhttps://book.klll.cc/ebooks/70409.opdsVacuum cleaning systems : A treatise on the principles and practice of mechanical cleaningM. S. Cooley