http://book.klll.cc/ebooks/author/51175.opds 2025-08-17T06:23:56Z Books by Schaeffer, Nathan Christ (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 2025-08-17T06:23:56Z https://en.wikipedia.org/wiki/Nathan_C._Schaeffer See also: en.wikipedia 2025-08-17T06:23:56Z https://book.klll.cc/ebooks/60893.opds Thinking and learning to think Nathan Christ Schaeffer