Project Gutenberg 2012-03-03 Public domain in the USA. 254 De Morgan, Augustus 1806 1871 Morgan, Augustus de Elementary Illustrations of the Differential and Integral Calculus en Calculus QA Text Mathematics Browsing: Mathematics Browsing: Science - General 919386 2012-03-03T18:22:57 application/pdf 723663 2012-03-03T18:22:58 application/pdf application/zip 364976 2021-06-11T17:21:27 application/prs.tex 182584 2021-06-11T17:21:27 application/prs.tex application/zip 9737 2025-06-16T03:45:34.877983 application/rdf+xml 24470 2025-06-16T03:45:34.803970 image/jpeg 4505 2025-06-16T03:45:34.522969 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