http://book.klll.cc/ebooks/author/53043.opds 2026-01-13T11:06:46Z Books by Nilsson, Martin P. (Martin Persson) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2026-01-13T11:06:46Z https://en.wikipedia.org/wiki/Martin_P._Nilsson See also: en.wikipedia 2026-01-13T11:06:46Z https://sv.wikipedia.org/wiki/Martin_P:son_Nilsson See also: sv.wikipedia 2026-01-13T11:06:46Z https://book.klll.cc/ebooks/64768.opds Primitive Time-reckoning Martin P. Nilsson