@Book{BVMC:635577, author = {Calefati, Pietro}, title = {Tractatus aureus et quotidie practicabilis aequestris dignitatis et de principibus etc.}, url = {https://www.cervantesvirtual.com/obra/tractatus-aureus-et-quotidie-practicabilis-aequestris-dignitatis-et-de-principibus-etc} }