Project Gutenberg 2006-02-01 Public domain in the USA. 946 Glenn, Oliver E. (Oliver Edmunds) 1878 Glenn, Oliver Edmunds A Treatise on the Theory of Invariants en Invariants QA Text Mathematics 959509 2015-04-25T08:16:07 application/pdf 8999 2025-10-04T10:18:18.165144 application/rdf+xml 516181 2015-04-25T08:16:07 application/prs.tex 16736 2025-10-04T10:18:18.097139 image/jpeg 3882 2025-10-04T10:18:17.850137 image/jpeg 941340 2015-04-25T08:16:08 application/octet-stream application/zip 163305 2015-04-25T08:16:07 application/octet-stream application/zip 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