Copy and Paste the Number 9 Text Symbols in over 10 different font styles and Nine in over 90 different decorated styles which you can use anywhere Unicode is supported.
I need to make sure the report is informative but also advises on legal access. Maybe include some examples of legal sources, like Project Gutenberg if available, but I don't think Montes de Oca is on there. Otherwise, perhaps the Digital Library of the National Autonomous University of Mexico (UNAM) or similar repositories. Also, maybe mention that some universities have digitized copies accessible through their libraries.