http://book.klll.cc/ebooks/subject/34337.opds 2025-11-18T20:15:16Z Books about Sioux Falls (S.D.) -- Directories Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-18T20:15:16Z https://book.klll.cc/ebooks/61030.opds Technical School, Sioux Falls Army Air Field Northwestern Bell Telephone Company