http://book.klll.cc/ebooks/subject/33721.opds2025-11-17T20:20:07ZBooks about ConcreteFree eBooks since 1971.Project Gutenberghttps://book.klll.ccwebmaster@gutenberg.orghttps://book.klll.cc/gutenberg/favicon.ico2512025-11-17T20:20:07Zhttps://book.klll.cc/ebooks/59379.opdsPlain Concrete for Farm UseT. A. H. Miller