Nicolaus Sanderus De visibili monarchia
Nicolaus Sanderus: De visibili monarchia libri octo, Lovanii 1571. (edición digital: https://gutenberg.beic.it/view/action/nmets.do?DOCCHOICE=13768833.xml&dvs=1587031196569~547&locale=es_ES&search_terms=&show_metadata=true&adjacency=&VIEWER_URL=/view/action/nmets.do?&DELIVERY_RULE_ID=7&divType=&usePid1=true&usePid2=true)