http://book.klll.cc/ebooks/author/36714.opds?sort_order=downloads 2025-11-17T00:48:14Z Books by Pfungst, Oskar Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-17T00:48:14Z http://de.wikipedia.org/wiki/Oskar_Pfungst See also: de.wikipedia 2025-11-17T00:48:14Z https://book.klll.cc/ebooks/33936.opds Clever Hans (The Horse of Mr. Von Osten) Oskar Pfungst