http://book.klll.cc/ebooks/author/58551.opds 2025-09-07T05:02:05Z Books by Gaddis, Vincent H. (Vincent Hayes) (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 2025-09-07T05:02:05Z https://en.wikipedia.org/wiki/Vincent_Gaddis See also: en.wikipedia 2025-09-07T05:02:05Z https://book.klll.cc/ebooks/76654.opds The new science of space speech Vincent H. Gaddis