Project Gutenberg 2010-02-21 Public domain in the USA. 162 Johnson, Willis E. (Willis Ernest) 1869 1951 07021399 Mathematical Geography en Mathematical geography GA Text Mathematics Astronomy Browsing: Mathematics Browsing: Science - General 6057265 2010-02-21T12:50:09 application/pdf 5264678 2010-02-21T12:50:10 application/pdf application/zip 752642 2010-02-21T12:50:09 application/prs.tex 4642122 2010-02-21T12:50:09 application/prs.tex application/zip 9710 2024-11-13T09:55:24.897180 application/rdf+xml 14255 2024-11-13T09:55:24.829192 image/jpeg 3868 2024-11-13T09:55:24.567188 image/jpeg Archives containing the RDF files for *all* our books can be downloaded at https://www.gutenberg.org/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog