http://book.klll.cc/ebooks/author/31401.opds?sort_order=title 2025-11-15T04:56:57Z Books by Blackburn, Douglas Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-15T04:56:57Z https://en.wikipedia.org/wiki/Douglas_Blackburn See also: en.wikipedia 2025-11-15T04:56:57Z https://book.klll.cc/ebooks/25532.opds Detection of Forgery Douglas Blackburn and W. Waithman Caddell