Project Gutenberg 2012-08-30 Public domain in the USA. 513 White, William Frank 1871 White, William F. 08003914 A Scrap-Book of Elementary Mathematics: Notes, Recreations, Essays en Mathematical recreations QA Text Mathematics 2203239 2012-08-30T11:29:19 application/pdf 8840 2025-08-16T12:43:08.631292 application/rdf+xml 498683 2021-06-11T17:21:32 application/prs.tex 25680 2025-08-16T12:43:08.553286 image/jpeg 4765 2025-08-16T12:43:08.281292 image/jpeg 1817240 2012-08-30T11:29:20 application/octet-stream application/zip 1044212 2021-06-11T17:21:32 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://book.klll.cc/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog