Project Gutenberg 2011-07-09 Public domain in the USA. 520 Wentworth, G. A. (George Albert) 1835 1906 Wentworth, George Albert The First Steps in Algebra en Algebra QA Text Mathematics Browsing: Mathematics Browsing: Science - General 788109 2011-07-08T22:42:30 application/pdf 567034 2011-07-08T22:42:31 application/pdf application/zip 415621 2021-06-11T17:21:17 application/prs.tex 119145 2021-06-11T17:21:17 application/prs.tex application/zip 9716 2025-06-15T04:53:26.340546 application/rdf+xml 13592 2025-06-15T04:53:26.262554 image/jpeg 3789 2025-06-15T04:53:25.991549 image/jpeg 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 en.wikipedia