Project Gutenberg 2009-01-19 Public domain in the USA. 56 Leith, C. K. (Charles Kenneth) 1875 1956 Leith, Charles Kenneth 21012100 The Economic Aspect of Geology Produced by Kevin Handy, Barbara Kosker, John Hagerson, Chrome and the Online Distributed Proofreading Team at http://www.pgdp.net en Geology, Economic TN Text Browsing: Economics Browsing: Engineering & Construction Browsing: Science - Earth/Agricultural/Farming 1360862 1350011 2024-08-12T05:41:31.407695 2023-09-12T09:13:55.005686 text/html text/html 1313695 2013-03-17T11:12:08 text/html; charset=iso-8859-1 3146413 2013-03-17T11:13:12 text/html; charset=iso-8859-1 application/zip 3081740 2024-08-12T05:41:59.505569 application/epub+zip 3088127 2024-08-12T05:41:37.968730 application/epub+zip 490996 2024-08-12T05:41:33.859821 application/epub+zip 3177396 2024-08-12T05:42:12.966493 application/x-mobipocket-ebook 3043687 2024-08-12T05:41:54.622585 application/x-mobipocket-ebook 849367 2022-09-13T05:09:59.004402 application/x-mobipocket-ebook 1083008 1082877 2024-08-12T05:41:27.471704 2023-09-12T09:13:51.211673 text/plain; charset=us-ascii text/plain 1082753 2009-01-19T06:28:04 text/plain; charset=iso-8859-1 353358 2009-01-19T06:31:34 text/plain; charset=iso-8859-1 application/zip 1082770 2009-01-19T06:31:16 text/plain; charset=us-ascii 353268 2009-01-19T06:31:32 text/plain; charset=us-ascii application/zip 19225 2024-08-12T05:42:13.155475 application/rdf+xml 14902 2024-08-12T05:41:34.401664 image/jpeg 3750 2024-08-12T05:41:34.127719 image/jpeg 3242144 2024-08-12T05:41:31.552684 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