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 Project Gutenberg 2010-02-21 Public domain in the USA. 239 Johnson, Willis E. (Willis Ernest) 1869 1951 07021399 Mathematical Geography en Mathematical geography GA Text Mathematics Astronomy 6057265 2010-02-21T12:50:09 application/pdf 9108 2025-10-13T04:01:12.087777 application/rdf+xml 752642 2010-02-21T12:50:09 application/prs.tex 14255 2025-10-13T04:01:12.022793 image/jpeg 3868 2025-10-13T04:01:11.778760 image/jpeg 5264678 2010-02-21T12:50:10 application/octet-stream application/zip 4642122 2010-02-21T12:50:09 application/octet-stream application/zip