Project Gutenberg 2004-07-01 Public domain in the USA. 80 Marsh, George P. (George Perkins) 1801 1882 Marsh, G. P. (George Perkins) The Earth as Modified by Human Action Produced by Steve Harris, Charles Franks and the Online Distributed Proofreading Team en Human geography Physical geography Conservation of natural resources Nature -- Effect of human beings on GF Text Browsing: Environmental Issues Browsing: Nature/Gardening/Animals Browsing: Travel & Geography 1666528 1666417 2024-08-03T06:51:50.722064 2023-10-03T07:07:10.248357 text/html text/html 676156 2024-08-03T06:52:04.394990 application/epub+zip 1666521 1666410 2024-08-03T06:51:51.215062 2023-10-03T07:07:10.583357 text/html text/html 703028 2024-08-03T06:51:53.165092 application/epub+zip 703027 2024-08-03T06:51:52.095088 application/epub+zip 1159821 2024-08-03T06:52:14.233924 application/x-mobipocket-ebook 1111206 2024-08-03T06:52:03.594977 application/x-mobipocket-ebook 1111292 2022-09-03T09:49:19.479672 application/x-mobipocket-ebook 1615342 1615274 2024-08-03T06:51:50.024077 2023-10-03T07:07:09.639368 text/plain; charset=us-ascii text/plain 1610473 2020-12-29T08:42:18 text/plain; charset=us-ascii 592481 2020-12-29T08:42:18 text/plain; charset=us-ascii application/zip 17738 2024-08-03T06:52:14.364932 application/rdf+xml 16859 2024-08-03T06:51:52.443045 image/jpeg 4036 2024-08-03T06:51:52.268050 image/jpeg 669167 2024-08-03T06:51:51.354060 application/octet-stream application/zip 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 en.wikipedia