Guia para estudo de História

• The history of the Popes; their church and state: Volume I https://archive.org/details/historyofpopesth00rankuoft
• The history of the Popes; their church and state: Volume II https://archive.org/details/historyofpopesth01rankuoft
• The history of the Popes; their church and state: Volume III https://archive.org/details/historyofpopesth02rankuoft
• The history of the Popes during the last four centuries: Volume I https://archive.org/details/historyofpopesdu01rankuoft
• The history of the Popes during the last four centuries: Volume II https://archive.org/details/historyofpopesdu02rankiala
• The history of the Popes during the last four centuries: Volume III https://archive.org/details/historyofthepope03rankuoft