http://book.klll.cc/ebooks/author/47058.opds 2025-09-16T21:04:08Z Books by Ebbinghaus, Hermann (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 2025-09-16T21:04:08Z https://en.wikipedia.org/wiki/Hermann_Ebbinghaus See also: en.wikipedia 2025-09-16T21:04:08Z https://book.klll.cc/ebooks/52823.opds Psychology: an elementary text-book Hermann Ebbinghaus