@Misc{BVMC:270743, author = {Vossius, Gerardus Joannes}, title = {Gerardi Ioannis Vossii De quatuor artibus popularibus, Grammatistice, Gymnastice, Musice, & Graphice liber.}, url = {https://www.cervantesvirtual.com/obra/gerardi-ioannis-vossii-de-quatuor-artibus-popularibus-grammatistice-gymnastice-musice-graphice-liber} }