The Lexikon der gesamten Technik ("encyclopedia of all technology") is an illustrated German-language encyclopedia of architectural, engineering and manufacturing technology, written by Otto Lueger (German engineer, 1843–1911) and first published in 1894.
Editions 1st Edition, 7 volumes, 1894–1899 2nd Edition, 8 volumes, 1904–1910 (with two supplements in 1914 and 1920) 3rd Edition, 6 volumes, 1926–1929 (with a separate index volume) 4th Edition, 17 volumes, 1960–1972
References
External links http://www.zeno.org/Lueger-1904, 10 volumes, digitized by Zeno.org and announced as public domain ("Lizenz: Gemeinfrei")